Fix background color of donation screen

Author: undecoded-coder

trunk/Bricksmith/Source/Application/General/DonationDialogController.m

@@ -38,8 +38,8 @@ - (void) awakeFromNib
 NSString *modelPath = nil;
 LDrawFile *bumModel = nil;
 
-[self->mainBackgroundsetBackgroundColor:[NSColor whiteColor]];
-[self->bottomBarsetBackgroundColor:[NSColor colorWithCalibratedWhite:0.75 alpha:1.0]];
+[self->mainBackgroundsetBackgroundColor:[NSColor underPageBackgroundColor]];
+[self->bottomBarsetBackgroundColor:[NSColor windowBackgroundColor]];
 
 // Display an LDraw model of a beggar, just to set the tone.
 modelPath = [[NSBundle mainBundle] pathForResource:@"Bum" ofType:@"ldr"];
@@ -124,7 +124,7 @@ - (BOOL) shouldShowDialog
 {
 showDonationRequest = NO;
 }
-
+
 if(lastNagVersion != bundleVersion)
 {
 showDonationRequest = YES;