I`ve codet a simple cli app. This app uses ansi codes like \x1B[48;2;190;190;0m for color. In addition it uses ascii full block (█) to display qr-codes. When I run my application in the normal linux bash it all works just fine, but if I run it into a gnu screen no colors are showing up and instead of an qr-code I only see many blank lines.
What am I missing ?