Accessibility: Support the cognitively disabled - Ensure Colored Notes with appropriate color contrast to the background - also in export to PDF etc

Your Proposal

1. Include background colors and styles in exportable formats like PDF and so forth

2. Implement warnings for insufficient color contrast (target: 4.5:1 or preferably 5:1). This covers colored notes against the background.

3. Automatically re-color elements (clef and so forth) to achieve good color contrast ... there are probably libs you can use to determine valid values. Maybe this helps? https://dev.to/alvaromontoro/building-your-own-color-contrast-checker-4j7o

Problem

To enhance accessibility, ensure custom colors and styles appear in the PDF/other formats, benefiting those with cognitive disabilities and new learners. This aligns with colored notes, currently lacking adequate contrast with the background. We need a method to easily improve contrast for elements like background and other elements when using colors/styles.

This includes that if you change the paper color you will be getting getting appropriate contrasting note colors as a result.

Issue #16506
Issue #16715

Additional Context

In general, we should be drawing inspiration from tools like Visual Studio Code in dark mode, the aim is to create a modern, customizable user experience without causing visual fatigue.

"music, accessible for all".