Switching theme colors and images to the old Arduino blue ones. On the plus side, the new theme setup should make it easier to have different colors in different releases (i.e. improve the color scheme).

build/shared/lib/theme/theme.txt

@@ -1,6 +1,6 @@
 # GUI - STATUS
 status.notice.fgcolor = #000000
-status.notice.bgcolor = #818b95
+status.notice.bgcolor = #54919e
 status.error.fgcolor = #ffffff
 status.error.bgcolor = #662000
 status.edit.fgcolor = #000000
@@ -10,7 +10,7 @@ status.font = SansSerif,plain,12
 # GUI - TABS
 # settings for the tabs at the top
 # (tab images are stored in the lib/theme folder)
-header.bgcolor = #818b95
+header.bgcolor = #216886
 header.text.selected.color = #1a1a00
 header.text.unselected.color = #ffffff
 header.text.font = SansSerif,plain,12
@@ -23,13 +23,13 @@ console.output.color = #cccccc
 console.error.color = #ff3000
 
 # GUI - BUTTONS
-buttons.bgcolor = #4a545e
+buttons.bgcolor = #044f6f
 buttons.status.font = SansSerif,plain,12
 buttons.status.color = #ffffff
 
 # GUI - LINESTATUS
 linestatus.color = #ffffff
-linestatus.bgcolor = #29333d
+linestatus.bgcolor = #044f6f
 
 # EDITOR - DETAILS