Ergonomic UI

[JottyTheHero]

Prusa Slicer is great, but people like me with a handicap in reading small fonts and low contrasts have only few possibilities to customize the UI to their needs. A few colors can be adjusted, which is really necessary when light green letters are shown on white Background, but I didn't find a way to resize the fonts from I guess 10pt to something readable, nor a possibility to change the background color.

It really would be helpful, if I could choose a "high contrast profile" with a proper font-size.

Thank You!

[bubnikv]

Duplicate of #6317, please continue at #6317