Changing Frame Buffer Pixel Format to Float RGBA makes the editor color look greyed out.

Changing Frame Buffer Pixel Format to Float RGBA makes the editor color greyed out with a faded look.

This is not a regression it is occurring in 4.27.

1. Open any project.
2. Open project settings..
3. Changing "Frame Buffer Pixel Format" to Float RGBA.
4. Restart the editor.

Result: The editors color is greyed out.

Expected Result: The editor color is not greyed out.