show invert color outline for mouse pixel position

Author: unitycoder

PixelArtTool/EnumsAndStructs.cs

@@ -54,6 +54,13 @@ public SolidColorBrush AsSolidColorBrush()
             return new SolidColorBrush(Color.FromArgb(Alpha, Red, Green, Blue));
         }
 
+        public PixelColor Inverted(byte alphaOverride=255)
+        {
+            var pc = new PixelColor();
+            pc.ColorBGRA = ColorBGRA ^ 0xffffffff;
+            pc.Alpha = alphaOverride;
+            return pc;
+        }
     }
 
     // helper for converting bool<>enum for xaml linked values

PixelArtTool/MainWindow.xaml.cs

@@ -566,8 +566,9 @@ void DrawingAreaMouseMoved(object sender, MouseEventArgs e)
             var left = x * canvasScaleX + ((x * (16 / canvasResolutionX)) * (off > 0 ? 1 : 0));
             var top = y * canvasScaleX + ((y * (16 / canvasResolutionY)) * (off > 0 ? 1 : 0));
 
-            // NOTE: this causes palette pixels to distort/move?
             rectPixelPos.Margin = new Thickness(89 + left, 50 + top, 0, 0);
+            var pc = GetPixelColor(x, y, canvasBitmap).Inverted(128);
+            rectPixelPos.Stroke = pc.AsSolidColorBrush();
         } // drawingareamousemoved
 
         void ShowMousePos(int x, int y)