macosx: fix color tint change notification (fixes #8612)

(cherry picked from commit 1ebd37d31bef640885b1d9fc8a769649ff2908e5)
Signed-off-by: David Fuhrmann <david.fuhrmann@googlemail.com>

modules/gui/macosx/MainWindowTitle.m

@@ -71,23 +71,6 @@
 
     [self loadButtonIcons];
     [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(controlTintChanged:) name: NSControlTintDidChangeNotification object: nil];
-
-    [o_red_btn setImage: o_red_img];
-    [o_red_btn setAlternateImage: o_red_on_img];
-    [[o_red_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
-    [[o_red_btn cell] setTag: 0];
-    [o_yellow_btn setImage: o_yellow_img];
-    [o_yellow_btn setAlternateImage: o_yellow_on_img];
-    [[o_yellow_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
-    [[o_yellow_btn cell] setTag: 1];
-    [o_green_btn setImage: o_green_img];
-    [o_green_btn setAlternateImage: o_green_on_img];
-    [[o_green_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
-    [[o_green_btn cell] setTag: 2];
-    [o_fullscreen_btn setImage: [NSImage imageNamed:@"window-fullscreen"]];
-    [o_fullscreen_btn setAlternateImage: [NSImage imageNamed:@"window-fullscreen-on"]];
-    [[o_fullscreen_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
-    [[o_fullscreen_btn cell] setTag: 3];
 }
 
 - (void)controlTintChanged:(NSNotification *)notification
@@ -159,6 +142,23 @@
             o_green_on_img = [[NSImage imageNamed:@"snowleo-window-zoom-on-graphite"] retain];
         }
     }
+
+    [o_red_btn setImage: o_red_img];
+    [o_red_btn setAlternateImage: o_red_on_img];
+    [[o_red_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
+    [[o_red_btn cell] setTag: 0];
+    [o_yellow_btn setImage: o_yellow_img];
+    [o_yellow_btn setAlternateImage: o_yellow_on_img];
+    [[o_yellow_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
+    [[o_yellow_btn cell] setTag: 1];
+    [o_green_btn setImage: o_green_img];
+    [o_green_btn setAlternateImage: o_green_on_img];
+    [[o_green_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
+    [[o_green_btn cell] setTag: 2];
+    [o_fullscreen_btn setImage: [NSImage imageNamed:@"window-fullscreen"]];
+    [o_fullscreen_btn setAlternateImage: [NSImage imageNamed:@"window-fullscreen-on"]];
+    [[o_fullscreen_btn cell] setShowsBorderOnlyWhileMouseInside: YES];
+    [[o_fullscreen_btn cell] setTag: 3];
 }
 
 - (BOOL)mouseDownCanMoveWindow