Dynamic, automatic background customization

Your idea

For different user modes (input by duration, input by note name, "normal" mode, real time input mode, etc.) let the background color or paper be automatically switched so that each mode has its own background.

Problem to be solved

The background isn't used for anything currently, so why not put it to good use? The current mode is not displayed clearly anywhere and I often forget to look at the highlighted icons in the toolbars to see that I'm still in an input mode. If I think I'm in normal mode but I'm not, I can accidentally write all over my score by noodling on my MIDI keyboard. If I occasionally use input by duration but normally use input by note name, I'd like to be reminded of that. Having different background colors or papers should solve those irritations. There may be other uses for this idea too.

Prior art

No response

Additional context

No response

Checklist

• This request follows the guidelines for reporting issues
• I have verified that this feature request has not been logged before, by searching the issue tracker for similar requests

The issue does not identify files, tests, or entry points. First locate the user-mode handling and background rendering areas, then define the supported modes, customization controls, and tests needed to show that each mode switches backgrounds correctly.