update screenshots with consistent browser theme

Author: raclim

src/content/tutorials/en/setting-up-your-environment.mdx

@@ -101,6 +101,9 @@ The following diagram labels and describes each element of the editor’s interf
 
 ![A labeled diagram of the p5.js Web Editor’s user interface.](../images/introduction/web-editor-diagram.png)
 
+{/* ![Play and Stop buttons.](../images/introduction/p5_editor_play_start.png)
+![Settings button with a gear icon in the center.](../images/introduction/p5_editor_settings.png) */}
+
 
 ### Step 4: Name, save, and run your first sketch