Experimental RTAB bug: imperfect background-unset CSS selector

[isHarryh]

Checks

• I have checked existing issues.
• I have checked the help page.
• This is actually a bug and not a feature.
• I am using the latest extension version.

Operating System

Windows 11

VSCode Version

1.103.2 (system setup)

Extension Version

4.0.0

Settings

    "background.windowBackgrounds": [
        "c:/path/to/image.jpg"
    ],
    "background.renderTextAboveBackground": true,
    "background.backgroundOpacity": [
        0.5,
        0.5,
        0.5,
        0.5
    ],
    "background.smoothImageRendering": true,

Settings Verification

• I have made sure to remove any sensitive or personal information from the above input.

Issue

When enabled the new feature RTAB (render text above background), some UI elements' background color got unexpectedly unset.

Expected	Actual

As can be seen in the image above, the sidebar icon of GitHub Actions disappear, some badges and buttons' blue background got removed.

Btw, thank you so much for implementing the RTAB feature! Thought it's not perfect yet, we can make it better.

How to replicate

1. Install the extension.
2. Add a image file to Window.
3. Enable RTAB feature.