Describe the bug
Dart : Flutter gutter icons option not showing color preview. On Vscode startup or windows reload it shows for 2 seconds and disappears.
Ps : Freshly installed Visual Code Studio with extensions dart & flutter only.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Settings UI'
2. Click on 'Dart : Flutter gutter icons'

Expected behavior
Always show color preview in gutter.

Screenshots

Please complete the following information:

• Operating System and version: Windows 10 Version 21H2 (OS Build 19044.1499) & Linux Mint 20.3 Una
• VS Code version: v1.66.2
• Dart extension version: v3.38.2
• Dart/Flutter SDK version: v2.10.0
• Target device (if the issue relates to Flutter debugging):