Work around the fact that Fl::get_system_colors() only works once.

Timeline/TLE.fl

@@ -23,8 +23,7 @@ decl {\#include "Audio_File.H" // for supported formats} {}
 
 decl {\#include "Waveform.H" // for options} {} 
 
-decl {\#include "Region.H" // for options} {selected
-} 
+decl {\#include "Region.H" // for options} {} 
 
 decl {\#include "Control_Sequence.H" // for options} {} 
 
@@ -37,6 +36,8 @@ decl {extern char *user_config_dir;} {global
 
 class TLE {open
 } {
+  decl {Fl_Color system_colors[3];} {selected public
+  }
   decl {static void menubar_cb ( void *v )} {}
   decl {void menubar_cb ( void )} {}
   Function {menu_picked_value( const Fl_Menu_ *m )} {open return_type {static int}
@@ -79,6 +80,9 @@ Fl::visible_focus( 0 );
 Fl::get_system_colors();
 Fl::scheme( "plastic" );
 
+system_colors[ 0 ] = (Fl_Color)Fl::get_color( FL_BACKGROUND_COLOR );
+system_colors[ 1 ] = (Fl_Color)Fl::get_color( FL_FOREGROUND_COLOR  );
+system_colors[ 2 ] = (Fl_Color)Fl::get_color( FL_BACKGROUND2_COLOR  );
 
 Fl::add_timeout( STATUS_UPDATE_FREQ, update_cb, this );
 
@@ -108,7 +112,7 @@ free( path );} {}
   } {
     Fl_Window main_window {
       label {Non-DAW - Timeline} open
-      xywh {577 27 1024 768} type Double resizable xclass {Non-DAW} visible
+      xywh {577 50 1024 768} type Double resizable xclass {Non-DAW} visible
     } {
       Fl_Menu_Bar menubar {open
         xywh {0 0 1024 25}
@@ -373,7 +377,21 @@ timeline->redraw();}
             } {
               MenuItem {} {
                 label System
-                callback {Fl::get_system_colors();
+                callback {//Fl::get_system_colors();
+
+unsigned char r, g, b;
+
+Fl::get_color( system_colors[ 0 ], r, g, b );
+
+Fl::background( r, g, b );
+
+Fl::get_color( system_colors[ 1 ], r, g, b );
+
+Fl::foreground( r, g, b );
+
+Fl::get_color( system_colors[ 2 ], r, g, b );
+
+Fl::background2( r, g, b );
 
 Fl::scheme( Fl::scheme() );}
                 xywh {0 0 40 25} type Radio