diff --git a/fluid/Fl_Function_Type.cxx b/fluid/Fl_Function_Type.cxx
index 86dcfaef3..2f9a18075 100644
--- a/fluid/Fl_Function_Type.cxx
+++ b/fluid/Fl_Function_Type.cxx
@@ -382,7 +382,7 @@ void Fl_Function_Type::write_code1() {
         size_t n = strlen(k);
         if (!strncmp(name(), k, n) && name()[n] == '(') constructor = 1;
       }
-      write_h("  ");
+      write_h("%s", indent(1));
       if (is_static) write_h("static ");
       if (is_virtual) write_h("virtual ");
       if (!constructor) {
@@ -482,8 +482,9 @@ void Fl_Function_Type::write_code1() {
     }
   }
 
-  if (havewidgets && child && !child->name()) write_c("  %s* w;\n", subclassname(child));
-  indentation += 2;
+  if (havewidgets && child && !child->name())
+    write_c("%s%s* w;\n", indent(1), subclassname(child));
+  indentation++;
 }
 
 /**
@@ -501,10 +502,12 @@ void Fl_Function_Type::write_code2() {
   }
 
   if (ismain()) {
-    if (havewidgets) write_c("  %s->show(argc, argv);\n", var);
-    if (havechildren) write_c("  return Fl::run();\n");
+    if (havewidgets)
+      write_c("%s%s->show(argc, argv);\n", indent(1), var);
+    if (havechildren)
+      write_c("%sreturn Fl::run();\n", indent(1));
   } else if (havewidgets && !constructor && !return_type) {
-    write_c("  return %s;\n", var);
+    write_c("%sreturn %s;\n", indent(1), var);
   }
   if (havechildren)
     write_c("}\n");
@@ -798,14 +801,14 @@ BREAK2:
 void Fl_CodeBlock_Type::write_code1() {
   const char* c = name();
   write_c("%s%s {\n", indent(), c ? c : "");
-  indentation += 2;
+  indentation++;
 }
 
 /**
  Write the "after" code.
  */
 void Fl_CodeBlock_Type::write_code2() {
-  indentation -= 2;
+  indentation--;
   if (after) write_c("%s} %s\n", indent(), after);
   else write_c("%s}\n", indent());
 }
@@ -975,8 +978,8 @@ void Fl_Decl_Type::write_code1() {
                         || (!strncmp(c,"struct",6) && isspace(c[6]))
                         ) ) {
     write_public(public_);
-    write_comment_h("  ");
-    write_h("  %s\n", c);
+    write_comment_h(indent(1));
+    write_h("%s%s\n", indent(1), c);
     return;
   }
   // handle putting #include, extern, using or typedef into decl:
@@ -1006,8 +1009,8 @@ void Fl_Decl_Type::write_code1() {
   while (e>c && e[-1]==';') e--;
   if (class_name(1)) {
     write_public(public_);
-    write_comment_h("  ");
-    write_hc("  ", int(e-c), c, csc);
+    write_comment_h(indent(1));
+    write_hc(indent(1), int(e-c), c, csc);
   } else {
     if (public_) {
       if (static_)
@@ -1241,14 +1244,17 @@ void Fl_Data_Type::write_code1() {
   }
   if (is_in_class()) {
     write_public(public_);
-    write_comment_h("  ");
     if (text_mode_) {
-      write_h("  static const char *%s;\n", c);
+      write_h("%sstatic const char *%s;\n", indent(1), c);
+      write_c("\n");
+      write_comment_c();
       write_c("const char *%s::%s = /* text inlined from %s */\n", class_name(1), c, fn);
       if (message) write_c("#error %s %s\n", message, fn);
       write_cstring(data, nData);
     } else {
-      write_h("  static unsigned char %s[%d];\n", c, nData);
+      write_h("%sstatic unsigned char %s[%d];\n", indent(1), c, nData);
+      write_c("\n");
+      write_comment_c();
       write_c("unsigned char %s::%s[%d] = /* data inlined from %s */\n", class_name(1), c, nData, fn);
       if (message) write_c("#error %s %s\n", message, fn);
       write_cdata(data, nData);
@@ -1260,12 +1266,14 @@ void Fl_Data_Type::write_code1() {
       if (static_) {
         if (text_mode_) {
           write_h("extern const char *%s;\n", c);
+          write_c("\n");
           write_comment_c();
           write_c("const char *%s = /* text inlined from %s */\n", c, fn);
           if (message) write_c("#error %s %s\n", message, fn);
           write_cstring(data, nData);
         } else {
           write_h("extern unsigned char %s[%d];\n", c, nData);
+          write_c("\n");
           write_comment_c();
           write_c("unsigned char %s[%d] = /* data inlined from %s */\n", c, nData, fn);
           if (message) write_c("#error %s %s\n", message, fn);
@@ -1281,6 +1289,7 @@ void Fl_Data_Type::write_code1() {
           write_h("unsigned char %s[3] = { 1, 2, 3 };\n", c);
       }
     } else {
+      write_c("\n");
       write_comment_c();
       if (static_)
         write_c("static ");
diff --git a/fluid/Fl_Menu_Type.cxx b/fluid/Fl_Menu_Type.cxx
index fda611d4e..e3d6fec44 100644
--- a/fluid/Fl_Menu_Type.cxx
+++ b/fluid/Fl_Menu_Type.cxx
@@ -221,7 +221,7 @@ void Fl_Menu_Item_Type::write_static() {
     write_c("\n}\n");
     if (k) {
       write_c("void %s::%s(Fl_Menu_* o, %s v) {\n", k, cn, ut);
-      write_c("  ((%s*)(o", k);
+      write_c("%s((%s*)(o", indent(1), k);
       Fl_Type* t = parent; while (t->is_menu_item()) t = t->parent;
       Fl_Type *q = 0;
       // Go up one more level for Fl_Input_Choice, as these are groups themselves
@@ -348,8 +348,8 @@ void Fl_Menu_Item_Type::write_code1() {
   if (!prev->is_menu_item()) {
     // for first menu item, declare the array
     if (class_name(1)) {
-      if (i18n_type) write_h("  static unsigned char %s_i18n_done;\n", mname);
-      write_h("  static Fl_Menu_Item %s[];\n", mname);
+      if (i18n_type) write_h("%sstatic unsigned char %s_i18n_done;\n", indent(1), mname);
+      write_h("%sstatic Fl_Menu_Item %s[];\n", indent(1), mname);
     } else {
       if (i18n_type) write_h("extern unsigned char %s_i18n_done;\n", mname);
       write_h("extern Fl_Menu_Item %s[];\n", mname);
@@ -360,7 +360,7 @@ void Fl_Menu_Item_Type::write_code1() {
   if (c) {
     if (class_name(1)) {
       write_public(public_);
-      write_h("  static Fl_Menu_Item *%s;\n", c);
+      write_h("%sstatic Fl_Menu_Item *%s;\n", indent(1), c);
     } else {
       if (c==name())
         write_h("#define %s (%s+%d)\n", c, mname, i);
@@ -374,8 +374,8 @@ void Fl_Menu_Item_Type::write_code1() {
       const char* cn = callback_name();
       const char* ut = user_data_type() ? user_data_type() : "void*";
       write_public(0);
-      write_h("  inline void %s_i(Fl_Menu_*, %s);\n", cn, ut);
-      write_h("  static void %s(Fl_Menu_*, %s);\n", cn, ut);
+      write_h("%sinline void %s_i(Fl_Menu_*, %s);\n", indent(1), cn, ut);
+      write_h("%sstatic void %s(Fl_Menu_*, %s);\n", indent(1), cn, ut);
     }
   }
 
@@ -395,7 +395,7 @@ void Fl_Menu_Item_Type::write_code1() {
         menuItemInitialized = 1;
         write_c("%s{ Fl_Menu_Item* o = &%s[%d];\n", indent(), mname, i);
       }
-      write_c("%s  %s\n", indent(), extra_code(n));
+      write_c("%s%s\n", indent_plus(1), extra_code(n));
     }
   }
   if (menuItemInitialized)
@@ -492,21 +492,21 @@ void Fl_Menu_Type::write_code2() {
       }
       if (nLabel) {
         write_c("%sif (!%s_i18n_done) {\n", indent(), mName);
-        write_c("%s  int i=0;\n", indent());
-        write_c("%s  for ( ; i<%d; i++)\n", indent(), nItem);
-        write_c("%s    if (%s[i].label())\n", indent(), mName);
+        write_c("%sint i=0;\n", indent_plus(1));
+        write_c("%sfor ( ; i<%d; i++)\n", indent_plus(1), nItem);
+        write_c("%sif (%s[i].label())\n", indent_plus(2), mName);
         switch (i18n_type) {
           case 1:
-            write_c("%s      %s[i].label(%s(%s[i].label()));\n",
-                    indent(), mName, i18n_function, mName);
+            write_c("%s%s[i].label(%s(%s[i].label()));\n",
+                    indent_plus(3), mName, i18n_function, mName);
             break;
           case 2:
-            write_c("%s      %s[i].label(catgets(%s,%s,i+%d,%s[i].label()));\n",
-                    indent(), mName, i18n_file[0] ? i18n_file : "_catalog",
+            write_c("%s%s[i].label(catgets(%s,%s,i+%d,%s[i].label()));\n",
+                    indent_plus(3), mName, i18n_file[0] ? i18n_file : "_catalog",
                     i18n_set, mi->msgnum(), mName);
             break;
         }
-        write_c("%s  %s_i18n_done = 1;\n", indent(), mName);
+        write_c("%s%s_i18n_done = 1;\n", indent_plus(1), mName);
         write_c("%s}\n", indent());
       }
     }
diff --git a/fluid/Fl_Type.cxx b/fluid/Fl_Type.cxx
index 720482c6a..ff6a48cf6 100644
--- a/fluid/Fl_Type.cxx
+++ b/fluid/Fl_Type.cxx
@@ -171,8 +171,11 @@ void delete_all(int selected_only) {
     // reset the setting for the external shell command
     shell_prefs_get();
     shell_settings_write();
+    widget_browser->hposition(0);
+    widget_browser->position(0);
   }
   selection_changed(0);
+  widget_browser->redraw();
 }
 
 // update a string member:
@@ -553,7 +556,8 @@ void Fl_Type::read_property(const char *c) {
 int Fl_Type::read_fdesign(const char*, const char*) {return 0;}
 
 /**
-  Write a comment into the header file.
+ Write a comment into the header file.
+ \param[in] pre indent the comment by this string
 */
 void Fl_Type::write_comment_h(const char *pre)
 {
@@ -609,22 +613,32 @@ void Fl_Type::write_comment_inline_c(const char *pre)
       // single line comment
       if (pre) write_c("%s", pre);
       write_c("// %s\n", s);
-      if (!pre) write_c("%s  ", indent());
+      if (!pre) write_c("%s", indent_plus(1));
     } else {
       write_c("%s/*\n", pre?pre:"");
-      if (pre) write_c("%s ", pre); else write_c("%s   ", indent());
+      if (pre)
+        write_c("%s ", pre);
+      else
+        write_c("%s ", indent_plus(1));
       while(*s) {
         if (*s=='\n') {
           if (s[1]) {
-            if (pre) write_c("\n%s ", pre); else write_c("\n%s   ", indent());
+            if (pre)
+              write_c("\n%s ", pre);
+            else
+              write_c("\n%s ", indent_plus(1));
           }
         } else {
           write_c("%c", *s); // FIXME this is much too slow!
         }
         s++;
       }
-      if (pre) write_c("\n%s */\n", pre); else write_c("\n%s   */\n", indent());
-      if (!pre) write_c("%s  ", indent());
+      if (pre)
+        write_c("\n%s */\n", pre);
+      else
+        write_c("\n%s */\n", indent_plus(1));
+      if (!pre)
+        write_c("%s", indent_plus(1));
     }
   }
 }
diff --git a/fluid/Fl_Widget_Type.cxx b/fluid/Fl_Widget_Type.cxx
index d181b8233..00bc95c41 100644
--- a/fluid/Fl_Widget_Type.cxx
+++ b/fluid/Fl_Widget_Type.cxx
@@ -2066,7 +2066,7 @@ void Fl_Widget_Type::write_static() {
     write_c("\n}\n");
     if (k) {
       write_c("void %s::%s(%s* o, %s v) {\n", k, cn, t, ut);
-      write_c("  ((%s*)(o", k);
+      write_c("%s((%s*)(o", indent(1), k);
       Fl_Type *q = 0;
       for (Fl_Type* p = parent; p && p->is_widget(); q = p, p = p->parent)
         write_c("->parent()");
@@ -2097,15 +2097,15 @@ void Fl_Widget_Type::write_code1() {
   if (c) {
     if (class_name(1)) {
       write_public(public_);
-      write_h("  %s *%s;\n", t, c);
+      write_h("%s%s *%s;\n", indent(1), t, c);
     }
   }
   if (class_name(1) && callback() && !is_name(callback())) {
     const char* cn = callback_name();
     const char* ut = user_data_type() ? user_data_type() : "void*";
     write_public(0);
-    write_h("  inline void %s_i(%s*, %s);\n", cn, t, ut);
-    write_h("  static void %s(%s*, %s);\n", cn, t, ut);
+    write_h("%sinline void %s_i(%s*, %s);\n", indent(1), cn, t, ut);
+    write_h("%sstatic void %s(%s*, %s);\n", indent(1), cn, t, ut);
   }
   // figure out if local variable will be used (prevent compiler warnings):
   int wused = !name() && is_window();
@@ -2184,7 +2184,7 @@ void Fl_Widget_Type::write_code1() {
   }
   write_c(");\n");
 
-  indentation += 2;
+  indentation++;
 
   if (wused) write_c("%sw = o; if (w) {/* empty */}\n", indent());
 
@@ -2396,7 +2396,7 @@ void Fl_Widget_Type::write_extra_code() {
 }
 
 void Fl_Widget_Type::write_block_close() {
-  indentation -= 2;
+  indentation--;
   write_c("%s} // %s* %s\n", indent(), subclassname(this),
           name() ? name() : "o");
 }
diff --git a/fluid/Fl_Window_Type.cxx b/fluid/Fl_Window_Type.cxx
index e910b7153..8f718ff05 100644
--- a/fluid/Fl_Window_Type.cxx
+++ b/fluid/Fl_Window_Type.cxx
@@ -1505,54 +1505,56 @@ void Fl_Widget_Class_Type::write_code1() {
   const char *c = subclass();
   if (!c) c = "Fl_Group";
 
+  write_c("\n");
   write_comment_h();
   write_h("\nclass %s : public %s {\n", name(), c);
   if (strstr(c, "Window")) {
-    write_h("  void _%s();\n", trimclassname(name()));
+    write_h("%svoid _%s();\n", indent(1), trimclassname(name()));
     write_h("public:\n");
-    write_h("  %s(int X, int Y, int W, int H, const char *L = 0);\n", trimclassname(name()));
-    write_h("  %s(int W, int H, const char *L = 0);\n", trimclassname(name()));
-    write_h("  %s();\n", trimclassname(name()));
+    write_h("%s%s(int X, int Y, int W, int H, const char *L = 0);\n", indent(1), trimclassname(name()));
+    write_h("%s%s(int W, int H, const char *L = 0);\n", indent(1), trimclassname(name()));
+    write_h("%s%s();\n", indent(1), trimclassname(name()));
 
     // a constructor with all four dimensions plus label
-    write_c("%s::%s(int X, int Y, int W, int H, const char *L)\n", name(), trimclassname(name()));
-    write_c("  : %s(X, Y, W, H, L) {\n", c);
-    write_c("  _%s();\n", trimclassname(name()));
+    write_c("%s::%s(int X, int Y, int W, int H, const char *L) :\n", name(), trimclassname(name()));
+    write_c("%s%s(X, Y, W, H, L)\n{\n", indent(1), c);
+    write_c("%s_%s();\n", indent(1), trimclassname(name()));
     write_c("}\n\n");
 
     // a constructor with just the size and label. The window manager will position the window
-    write_c("%s::%s(int W, int H, const char *L)\n", name(), trimclassname(name()));
-    write_c("  : %s(0, 0, W, H, L) {\n", c);
-    write_c("  clear_flag(16);\n");
-    write_c("  _%s();\n", trimclassname(name()));
+    write_c("%s::%s(int W, int H, const char *L) :\n", name(), trimclassname(name()));
+    write_c("%s%s(0, 0, W, H, L)\n{\n", indent(1), c);
+    write_c("%sclear_flag(16);\n", indent(1));
+    write_c("%s_%s();\n", indent(1), trimclassname(name()));
     write_c("}\n\n");
 
     // a constructor that takes size and label from the Fluid database
-    write_c("%s::%s()\n", name(), trimclassname(name()));
-    write_c("  : %s(0, 0, %d, %d, ", c, o->w(), o->h());
+    write_c("%s::%s() :\n", name(), trimclassname(name()));
+    write_c("%s%s(0, 0, %d, %d, ", indent(1), c, o->w(), o->h());
     const char *cstr = label();
     if (cstr) write_cstring(cstr);
     else write_c("0");
-    write_c(") {\n");
-    write_c("  clear_flag(16);\n");
-    write_c("  _%s();\n", trimclassname(name()));
+    write_c(")\n{\n");
+    write_c("%sclear_flag(16);\n", indent(1));
+    write_c("%s_%s();\n", indent(1), trimclassname(name()));
     write_c("}\n\n");
 
     write_c("void %s::_%s() {\n", name(), trimclassname(name()));
-//    write_c("  %s *w = this;\n", name());
+//    write_c("%s%s *w = this;\n", indent(1), name());
   } else {
     write_h("public:\n");
-    write_h("  %s(int X, int Y, int W, int H, const char *L = 0);\n", trimclassname(name()));
-
-    write_c("%s::%s(int X, int Y, int W, int H, const char *L)\n", name(), trimclassname(name()));
+    write_h("%s%s(int X, int Y, int W, int H, const char *L = 0);\n",
+            indent(1), trimclassname(name()));
+    write_c("%s::%s(int X, int Y, int W, int H, const char *L) :\n", name(), trimclassname(name()));
     if (wc_relative)
-      write_c("  : %s(0, 0, W, H, L) {\n", c);
+      write_c("%s%s(0, 0, W, H, L)\n{\n", indent(1), c);
     else
-      write_c("  : %s(X, Y, W, H, L) {\n", c);
+      write_c("%s%s(X, Y, W, H, L)\n{\n", indent(1), c);
   }
 
-//  write_c("  %s *o = this;\n", name());
+//  write_c("%s%s *o = this;\n", indent(1), name());
 
+  indentation++;
   write_widget_code();
 }
 
@@ -1570,6 +1572,7 @@ void Fl_Widget_Class_Type::write_code2() {
   write_c("%send();\n", indent());
   if (((Fl_Window*)o)->resizable() == o)
     write_c("%sresizable(this);\n", indent());
+  indentation--;
   write_c("}\n");
 }
 
diff --git a/fluid/Fluid_Image.cxx b/fluid/Fluid_Image.cxx
index f1f5832b1..65767632b 100644
--- a/fluid/Fluid_Image.cxx
+++ b/fluid/Fluid_Image.cxx
@@ -144,9 +144,10 @@ void Fluid_Image::write_initializer(const char *type_name, const char *format, .
    } */
   va_list ap;
   va_start(ap, format);
-  write_c("static Fl_Image *%s() {\n  static Fl_Image *image = new %s(", function_name_, type_name);
+  write_c("static Fl_Image *%s() {\n%sstatic Fl_Image *image = new %s(",
+          function_name_, indent(1), type_name);
   vwrite_c(format, ap);
-  write_c(");\n  return image;\n}\n");
+  write_c(");\n%sreturn image;\n}\n", indent(1));
   va_end(ap);
 }
 
diff --git a/fluid/about_panel.cxx b/fluid/about_panel.cxx
index 5a6e40e5b..61fcdb640 100644
--- a/fluid/about_panel.cxx
+++ b/fluid/about_panel.cxx
@@ -264,11 +264,11 @@ static void cb_Close(Fl_Return_Button* o, void*) {
 
 Fl_Double_Window* make_about_panel() {
   static char cbuf[200] = "";
-    if (!cbuf[0]) {
-      time_t t = time(0);
-      struct tm *lt = localtime(&t);
-      sprintf(cbuf, "Copyright © 1998 - %d\nby Bill Spitzak and others", lt->tm_year+1900);
-    }
+  if (!cbuf[0]) {
+    time_t t = time(0);
+    struct tm *lt = localtime(&t);
+    sprintf(cbuf, "Copyright © 1998 - %d\nby Bill Spitzak and others", lt->tm_year+1900);
+  }
   { about_panel = new Fl_Double_Window(345, 180, "About FLUID");
     about_panel->color(FL_LIGHT1);
     about_panel->selection_color(FL_DARK1);
@@ -303,6 +303,7 @@ Fl_Double_Window* make_about_panel() {
   } // Fl_Double_Window* about_panel
   return about_panel;
 }
+
 /**
  Embedded image for internal fluid.html web page.
 */
diff --git a/fluid/about_panel.fl b/fluid/about_panel.fl
index 74cedb06f..6c5fd3d9e 100644
--- a/fluid/about_panel.fl
+++ b/fluid/about_panel.fl
@@ -2,6 +2,8 @@
 version 1.0400
 header_name {.h}
 code_name {.cxx}
+mac_shell_cmd {echo "Fluid is nice"}
+mac_shell_flags 3
 comment {//
 // About dialog for the Fast Light Tool Kit (FLTK).
 //
@@ -29,11 +31,11 @@ decl {void show_help(const char *name);} {public local
 Function {make_about_panel()} {open
 } {
   code {static char cbuf[200] = "";
-  if (!cbuf[0]) {
-    time_t t = time(0);
-    struct tm *lt = localtime(&t);
-    sprintf(cbuf, "Copyright © 1998 - %d\\nby Bill Spitzak and others", lt->tm_year+1900);
-  }} {}
+if (!cbuf[0]) {
+  time_t t = time(0);
+  struct tm *lt = localtime(&t);
+  sprintf(cbuf, "Copyright © 1998 - %d\\nby Bill Spitzak and others", lt->tm_year+1900);
+}} {}
   Fl_Window about_panel {
     label {About FLUID} open
     xywh {449 217 345 180} type Double color 50 selection_color 47 hotspot
@@ -64,12 +66,12 @@ Version x.x.x}
     }
     Fl_Return_Button {} {
       label Close
-      callback {((Fl_Window*)(o->parent()))->hide();}
+      callback {((Fl_Window*)(o->parent()))->hide();} selected
       xywh {250 145 83 25}
     }
   }
 }
 
 data fluid_org_png {
-  comment {Embedded image for internal fluid.html web page.} selected public local filename {../documentation/src/fluid-org.png}
+  comment {Embedded image for internal fluid.html web page.} public local filename {../documentation/src/fluid-org.png}
 }
diff --git a/fluid/code.cxx b/fluid/code.cxx
index 66a51901b..11d8d2d4e 100644
--- a/fluid/code.cxx
+++ b/fluid/code.cxx
@@ -37,8 +37,11 @@
 static FILE *code_file = NULL;
 static FILE *header_file = NULL;
 
+/// Store the current indentation level for the C source code.
 int indentation = 0;
+
 int write_number = 0;
+
 int write_sourceview = 0;
 
 /**
@@ -105,15 +108,46 @@ const char* unique_id(void* o, const char* type, const char* name, const char* l
 
 
 /**
- Return a C string that indents code to the current depth.
- */
-const char* indent() {
-  static const char* spaces = "                ";
+ Return a C string that indents code to the given depth.
 
-  int i = indentation; if (i>16) i = 16;
-  return spaces+16-i;
+ Indentation can be changed by modifying the multiplicator (``*2`` to keep
+ the FLTK indent style). Changing `spaces` to a list of tabs would generate
+ tab indents instead. This function can also be used for fixed depth indents
+ in the header file.
+
+ Do *not* ever make this a user preference, or you will end up writing a
+ fully featured code formatter.
+
+ \param[in] set generate this indent depth
+ \return pointer to a static string
+ */
+const char *indent(int set) {
+  static const char* spaces = "                                ";
+  int i = set * 2;
+  if (i>32) i = 32;
+  if (i<0) i = 0;
+  return spaces+32-i;
 }
 
+/**
+ Return a C string that indents code to the current source file depth.
+ \return pointer to a static string
+ */
+const char *indent() {
+  return indent(indentation);
+}
+
+/**
+ Return a C string that indents code to the current source file depth plus an offset.
+ \param[in] offset adds a temporary offset for this call only; this does not
+    change the `indentation` variable; offset can be negative
+ \return pointer to a static string
+ */
+const char *indent_plus(int offset) {
+  return indent(indentation+offset);
+}
+
+
 ////////////////////////////////////////////////////////////////
 // declarations/include files:
 // Each string generated by write_declare is written only once to
@@ -360,6 +394,10 @@ void write_h(const char* format,...) {
 
 /**
  Write code (c) of size (n) to H file, with optional comment (com) w/o trailing space.
+ \param[in] indent indentation string for all lines
+ \param[in] n number of bytes in code line
+ \param[in] c line of code
+ \param[in] com optional commentary
  */
 void write_hc(const char *indent, int n, const char* c, const char *com) {
   if (*com)
@@ -374,7 +412,7 @@ void write_hc(const char *indent, int n, const char* c, const char *com) {
  */
 void write_c_indented(const char *textlines) {
   if (textlines) {
-    indentation+=2;
+    indentation++;
     for (;;) {
       const char *newline = strchr(textlines, '\n');
       if (!newline) break;
@@ -383,7 +421,7 @@ void write_c_indented(const char *textlines) {
     }
     if (*textlines)
       write_c("%s%s", indent(), textlines);
-    indentation-=2;
+    indentation--;
   }
 }
 
diff --git a/fluid/code.h b/fluid/code.h
index 377c58085..474b87bf0 100644
--- a/fluid/code.h
+++ b/fluid/code.h
@@ -27,7 +27,9 @@ extern int write_sourceview;
 
 int is_id(char c);
 const char* unique_id(void* o, const char*, const char*, const char*);
-extern const char* indent();
+const char *indent();
+const char *indent(int set);
+const char *indent_plus(int offset);
 int write_declare(const char *, ...) __fl_attr((__format__ (__printf__, 1, 2)));
 void write_cstring(const char *,int length);
 void write_cstring(const char *);
diff --git a/fluid/function_panel.cxx b/fluid/function_panel.cxx
index ab3e177b1..65326ae10 100644
--- a/fluid/function_panel.cxx
+++ b/fluid/function_panel.cxx
@@ -1,7 +1,7 @@
 //
 // Code dialogs for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2020 by Bill Spitzak and others.
+// Copyright 1998-2021 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -146,7 +146,7 @@ Fl_Double_Window *code_panel=(Fl_Double_Window *)0;
 static void cb_code_panel(Fl_Double_Window*, void*) {
   if (Fl::event()==FL_SHORTCUT && Fl::event_key()==FL_Escape)
     return; // ignore Escape
-code_panel->hide(); // otherwise hide..;
+  code_panel->hide(); // otherwise hide..;
 }
 
 CodeEditor *code_input=(CodeEditor *)0;
@@ -720,9 +720,9 @@ Fl_Window *widgetbin_panel=(Fl_Window *)0;
 
 static void cb_widgetbin_panel(Fl_Window* o, void* v) {
   if (Fl::event()==FL_SHORTCUT && Fl::event_key()==FL_Escape)
-  exit_cb((Fl_Widget*)o, v);
-else
-  toggle_widgetbin_cb((Fl_Widget*)o, v);
+    exit_cb((Fl_Widget*)o, v);
+  else
+    toggle_widgetbin_cb((Fl_Widget*)o, v);
 }
 
 Fl_Window* make_widgetbin() {
diff --git a/fluid/function_panel.fl b/fluid/function_panel.fl
index 6c0933361..df0e307b2 100644
--- a/fluid/function_panel.fl
+++ b/fluid/function_panel.fl
@@ -7,7 +7,7 @@ mac_shell_flags 3
 comment {//
 // Code dialogs for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2020 by Bill Spitzak and others.
+// Copyright 1998-2021 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -60,7 +60,7 @@ Function {make_function_panel()} {open
       } {
         MenuItem {} {
           label private
-          user_data 0 user_data_type long selected
+          user_data 0 user_data_type long
           xywh {5 5 100 20} labelsize 11
         }
         MenuItem {} {
@@ -84,7 +84,7 @@ Function {make_function_panel()} {open
         }
         MenuItem {} {
           label global
-          user_data 1 user_data_type long
+          user_data 1 user_data_type long selected
           xywh {15 15 100 20} labelsize 11
         }
       }
@@ -133,7 +133,7 @@ Function {make_code_panel()} {open
   Fl_Window code_panel {
     label {Code Properties}
     callback {if (Fl::event()==FL_SHORTCUT && Fl::event_key()==FL_Escape)
-    return; // ignore Escape
+  return; // ignore Escape
 code_panel->hide(); // otherwise hide..}
     xywh {425 882 540 180} type Double labelsize 11 resizable
     code0 {o->size_range(200, 150);} modal visible
diff --git a/fluid/function_panel.h b/fluid/function_panel.h
index 26f26c594..4c87f2dae 100644
--- a/fluid/function_panel.h
+++ b/fluid/function_panel.h
@@ -1,7 +1,7 @@
 //
 // Code dialogs for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2020 by Bill Spitzak and others.
+// Copyright 1998-2021 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
diff --git a/fluid/print_panel.cxx b/fluid/print_panel.cxx
index eae17fee5..85dc22321 100644
--- a/fluid/print_panel.cxx
+++ b/fluid/print_panel.cxx
@@ -45,21 +45,21 @@ Fl_Round_Button *print_all=(Fl_Round_Button *)0;
 
 static void cb_print_all(Fl_Round_Button*, void*) {
   print_from->deactivate();
-print_to->deactivate();
+  print_to->deactivate();
 }
 
 Fl_Round_Button *print_pages=(Fl_Round_Button *)0;
 
 static void cb_print_pages(Fl_Round_Button*, void*) {
   print_from->activate();
-print_to->activate();
+  print_to->activate();
 }
 
 Fl_Round_Button *print_selection=(Fl_Round_Button *)0;
 
 static void cb_print_selection(Fl_Round_Button*, void*) {
   print_from->deactivate();
-print_to->deactivate();
+  print_to->deactivate();
 }
 
 Fl_Int_Input *print_from=(Fl_Int_Input *)0;
@@ -70,22 +70,22 @@ Fl_Spinner *print_copies=(Fl_Spinner *)0;
 
 static void cb_print_copies(Fl_Spinner*, void*) {
   if (print_copies->value() == 1) {
-  print_collate_button->deactivate();
-  print_collate_group[0]->deactivate();
-  print_collate_group[1]->deactivate();
-} else {
-  print_collate_button->activate();
-  print_collate_group[0]->activate();
-  print_collate_group[1]->activate();
-};
+    print_collate_button->deactivate();
+    print_collate_group[0]->deactivate();
+    print_collate_group[1]->deactivate();
+  } else {
+    print_collate_button->activate();
+    print_collate_group[0]->activate();
+    print_collate_group[1]->activate();
+  }
 }
 
 Fl_Check_Button *print_collate_button=(Fl_Check_Button *)0;
 
 static void cb_print_collate_button(Fl_Check_Button*, void*) {
   int i = print_collate_button->value() != 0;
-print_collate_group[i]->show();
-print_collate_group[1 - i]->hide();
+  print_collate_group[i]->show();
+  print_collate_group[1 - i]->hide();
 }
 
 Fl_Group *print_collate_group[2]={(Fl_Group *)0};
@@ -100,7 +100,7 @@ Fl_Double_Window *print_properties_panel=(Fl_Double_Window *)0;
 
 static void cb_print_properties_panel(Fl_Double_Window*, void*) {
   print_properties_panel->hide();
-print_update_status();
+  print_update_status();
 }
 
 Fl_Choice *print_page_size=(Fl_Choice *)0;
@@ -214,24 +214,24 @@ Fl_Button *print_output_mode[4]={(Fl_Button *)0};
 
 static void cb_Save(Fl_Return_Button*, void*) {
   print_properties_panel->hide();
-
-char name[1024];
-int val;
-const char *printer = (const char *)print_choice->menu()[print_choice->value()].user_data();
-
-snprintf(name, sizeof(name), "%s/page_size", printer);
-fluid_prefs.set(name, print_page_size->value());
-
-snprintf(name, sizeof(name), "%s/output_mode", printer);
-for (val = 0; val < 4; val ++) {
-  if (print_output_mode[val]->value()) break;
-}
-fluid_prefs.set(name, val);
+  
+  char name[1024];
+  int val;
+  const char *printer = (const char *)print_choice->menu()[print_choice->value()].user_data();
+  
+  snprintf(name, sizeof(name), "%s/page_size", printer);
+  fluid_prefs.set(name, print_page_size->value());
+  
+  snprintf(name, sizeof(name), "%s/output_mode", printer);
+  for (val = 0; val < 4; val ++) {
+    if (print_output_mode[val]->value()) break;
+  }
+  fluid_prefs.set(name, val);
 }
 
 static void cb_Cancel1(Fl_Button*, void*) {
   print_properties_panel->hide();
-print_update_status();
+  print_update_status();
 }
 
 static void cb_Use(Fl_Button*, void*) {
diff --git a/fluid/print_panel.fl b/fluid/print_panel.fl
index 9119d35a9..a576ca86c 100644
--- a/fluid/print_panel.fl
+++ b/fluid/print_panel.fl
@@ -2,6 +2,8 @@
 version 1.0400
 header_name {.h}
 code_name {.cxx}
+mac_shell_cmd {echo "Fluid is nice"}
+mac_shell_flags 3
 comment {//
 // FLUID print panel for the Fast Light Tool Kit (FLTK).
 //
@@ -20,7 +22,7 @@ comment {//
 } {in_source in_header
 }
 
-decl {\#include "fluid.h"} {selected private local
+decl {\#include "fluid.h"} {private local
 }
 
 decl {\#include <FL/fl_string.h>} {private local
@@ -212,7 +214,7 @@ print_collate_group[1 - i]->hide();}
   Fl_Window print_properties_panel {
     label {Printer Properties}
     callback {print_properties_panel->hide();
-print_update_status();}
+print_update_status();} selected
     xywh {462 486 290 130} type Double modal visible
   } {
     Fl_Choice print_page_size {
diff --git a/fluid/template_panel.cxx b/fluid/template_panel.cxx
index 04117ba6c..69bd295ec 100644
--- a/fluid/template_panel.cxx
+++ b/fluid/template_panel.cxx
@@ -36,62 +36,62 @@ Fl_Double_Window *template_panel=(Fl_Double_Window *)0;
 
 static void cb_template_panel(Fl_Double_Window*, void*) {
   Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
-if (img) img->release();
-template_preview->image(0);
-
-template_browser->deselect();
-template_name->value("");
-template_instance->value("");
-template_panel->hide();
+  if (img) img->release();
+  template_preview->image(0);
+  
+  template_browser->deselect();
+  template_name->value("");
+  template_instance->value("");
+  template_panel->hide();
 }
 
 Fl_Browser *template_browser=(Fl_Browser *)0;
 
 static void cb_template_browser(Fl_Browser*, void*) {
   if (Fl::event_clicks()) {
-  template_panel->hide();
-  return;
-}
-Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
-if (img) img->release();
-template_preview->image(0);
-template_preview->redraw();
-
-int item = template_browser->value();
-
-if (item <= 1) template_instance->deactivate();
-else template_instance->activate();
-
-if (item < 1) {
-  template_submit->deactivate();
-  template_delete->deactivate();
-  return;
-}
-
-template_submit->activate();
-
-const char *flfile = (const char *)template_browser->data(item);
-if (!flfile) {
-  template_delete->deactivate();
-  return;
-}
-
-template_name->value(template_browser->text(item));
-
-template_delete->activate();
-
-char pngfile[1024], *ext;
-
-strlcpy(pngfile, flfile, sizeof(pngfile));
-if ((ext = strrchr(pngfile, '.')) == NULL) return;
-strcpy(ext, ".png");
-
-img = Fl_Shared_Image::get(pngfile);
-
-if (img) {
-  template_preview->image(img);
+    template_panel->hide();
+    return;
+  }
+  Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
+  if (img) img->release();
+  template_preview->image(0);
   template_preview->redraw();
-};
+  
+  int item = template_browser->value();
+  
+  if (item <= 1) template_instance->deactivate();
+  else template_instance->activate();
+  
+  if (item < 1) {
+    template_submit->deactivate();
+    template_delete->deactivate();
+    return;
+  }
+  
+  template_submit->activate();
+  
+  const char *flfile = (const char *)template_browser->data(item);
+  if (!flfile) {
+    template_delete->deactivate();
+    return;
+  }
+  
+  template_name->value(template_browser->text(item));
+  
+  template_delete->activate();
+  
+  char pngfile[1024], *ext;
+  
+  strlcpy(pngfile, flfile, sizeof(pngfile));
+  if ((ext = strrchr(pngfile, '.')) == NULL) return;
+  strcpy(ext, ".png");
+  
+  img = Fl_Shared_Image::get(pngfile);
+  
+  if (img) {
+    template_preview->image(img);
+    template_preview->redraw();
+  }
 }
 
 Fl_Box *template_preview=(Fl_Box *)0;
@@ -100,9 +100,9 @@ Fl_Input *template_name=(Fl_Input *)0;
 
 static void cb_template_name(Fl_Input*, void*) {
   if (strlen(template_name->value())) {
-  template_submit->activate();
-  if (Fl::event_key() == FL_Enter) template_panel->hide();
-} else template_submit->deactivate();
+    template_submit->activate();
+    if (Fl::event_key() == FL_Enter) template_panel->hide();
+  } else template_submit->deactivate();
 }
 
 Fl_Input *template_instance=(Fl_Input *)0;
@@ -111,23 +111,23 @@ Fl_Button *template_delete=(Fl_Button *)0;
 
 static void cb_Cancel(Fl_Button*, void*) {
   Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
-if (img) img->release();
-template_preview->image(0);
-
-template_browser->deselect();
-template_name->value("");
-template_instance->value("");
-template_panel->hide();
+  if (img) img->release();
+  template_preview->image(0);
+  
+  template_browser->deselect();
+  template_name->value("");
+  template_instance->value("");
+  template_panel->hide();
 }
 
 Fl_Return_Button *template_submit=(Fl_Return_Button *)0;
 
 static void cb_template_submit(Fl_Return_Button*, void*) {
   Fl_Shared_Image *img = (Fl_Shared_Image *)template_preview->image();
-if (img) img->release();
-template_preview->image(0);
-
-template_panel->hide();
+  if (img) img->release();
+  template_preview->image(0);
+  
+  template_panel->hide();
 }
 
 Fl_Double_Window* make_template_panel() {
diff --git a/fluid/template_panel.fl b/fluid/template_panel.fl
index 9407a7564..51c07ef0e 100644
--- a/fluid/template_panel.fl
+++ b/fluid/template_panel.fl
@@ -2,6 +2,8 @@
 version 1.0400
 header_name {.h}
 code_name {.cxx}
+mac_shell_cmd {echo "Fluid is nice"}
+mac_shell_flags 3
 comment {//
 // FLUID template support for the Fast Light Tool Kit (FLTK).
 //
diff --git a/fluid/widget_panel.fl b/fluid/widget_panel.fl
index f4f3bd3a2..1f3df77eb 100644
--- a/fluid/widget_panel.fl
+++ b/fluid/widget_panel.fl
@@ -39,7 +39,7 @@ Function {make_widget_panel()} {
     } {
       Fl_Group {} {
         label GUI
-        callback propagate_load
+        callback propagate_load selected
         xywh {10 30 400 330} labelsize 11 when 0 resizable
       } {
         Fl_Group {} {