[Accessibility] Color Contrast is not respected.

[andreacantone]

Description

The contrast ratio between text and background should be at least 4.5 . Some elements don't respect the contrast ratio.

How to reproduce the error

1. Activate the app Accessibility Scanner
2. Open the app Midi Sheet Music
3. Activate the registration from the Accessibility Scanner and use the Midi Sheet Music app.
4. After using the app, stop the recording.

Screenshot

The results will show the errors found in the app. For example: