[Feature Request] Support for "Immersive Mode" or Status Bar Color Toggling in Landscape Apps

[jsarkari]

Problem Description:

On the Furiphone FLX1 running FuriOS, the top status bar remains visible with white text/icons while playing games or watching content in portrait/landscape mode. Against light-colored game backgrounds (like the pool game attached), the white text is highly distracting and breaks immersion.

Steps Taken to Resolve (User Side):

I attempted to manually override the styling to change the text color to Grey (#808080) or Black, but the system ignored these changes:

1. Created ~/.config/gtk-3.0/gtk.css targeting .phosh-top-panel and #phosh-top-panel with !important flags.
2. Verified the file was correctly formatted using cat.
3. Rebooted the device, but the text remained forced to white.
4. Checked gsettings for any high-contrast or adaptive toggles, but none resolved the issue.

Proposed Solution:

Please provide a way for the system to handle landscape/full-screen apps more gracefully:

• Preferred: Implement a true "Immersive Mode" where the top bar auto-hides and only appears on a swipe-down gesture.

• Alternative: Allow the status bar text/icon color to dynamically switch to black (Light Status Bar mode) when the foreground app is detected as being in landscape or having a light header.