Update README.md

Author: ghost1372

README.md

@@ -492,7 +492,7 @@ Install-Package DevWinUI.ContextMenu
 ![DevWinUI](https://raw.githubusercontent.com/ghost1372/DevWinUI-Resources/refs/heads/main/DevWinUI-Docs/StackPanelStyle.png)
 
 ### Brush
-![DevWinUI](https://raw.githubusercontent.com/ghost1372/DevWinUI-Resources/refs/heads/main/DevWinUI-Docs/Brushes.png)
+![DevWinUI](https://raw.githubusercontent.com/ghost1372/DevWinUI-Resources/refs/heads/main/DevWinUI-Docs/Brushes.gif)
 
 ### Shortcut
 ![DevWinUI](https://raw.githubusercontent.com/ghost1372/DevWinUI-Resources/refs/heads/main/DevWinUI-Docs/Shortcut.gif)