Color to indicate we're using a debug build.

Clocker/Panel/ParentPanelController.swift

@@ -172,6 +172,15 @@ class ParentPanelController: NSWindowController {
         setupObservers()
 
         updateReviewViewFontColor()
+        
+        // Set the background color of the bottom buttons view to something different to indicate we're not in a release candidate
+        #if DEBUG
+            stackView.arrangedSubviews.last?.layer?.backgroundColor = NSColor(deviceRed: 255.0/255.0,
+                                                                              green: 150.0/255.0,
+                                                                              blue: 122.0/255.0,
+                                                                              alpha: 0.5).cgColor
+            stackView.arrangedSubviews.last?.toolTip = "Clocker is running in Debug Mode"
+        #endif
 
         // Setup layers
         futureSliderView.wantsLayer = true