ui header/menu and add undo/redo for creation actions

full-width toolbar/menubar layer
move save into file menu and add edit menu actions for undo/redo
menubar dropdown interaction modal
update header/view-type labels and menu layout behavior
creation-history tracking for walls and polygons
undo (ctrl+z) and redo (ctrl+r) in 2d editor
improve list/button visual states

1 files changed, 3 insertions, 2 deletions

diff --git a/src/gui/button.cpp b/src/gui/button.cpp
index 1548e0e..e66130b 100644
--- a/src/gui/button.cpp
+++ b/src/gui/button.cpp
@@ -12,11 +12,12 @@ void gui_button_draw_fn( void* ptr ) {
   U8 hover = inbounds && !active;
 
   CLR border = gui_is_fg_window( btn )? ui_clr.border : ui_clr.border_inactive;
-  if( active )
-    border = { 0.f, 1.f, 0.f, 1.f };
 
   CLR fill = ui_clr.bg_sec;
   CLR txt = ui_clr.txt;
+  if( active ) {
+    fill = CLR::blend( ui_clr.bg_sec, ui_clr.border, 0.22f );
+  }
   if( hover ) {
     fill = ui_clr.border;
     txt = CLR::BLACK();