more GUI options

[szymonkaliski]

I think it would be great if we had more options with controlling colors in choose, now some of them are hardcoded, which blocks some ideas for customising, I think we should add options like this:

• set color of choose window (so we could create dark background one)
• set alpha channel of all colors, not just RGB value
• change icon next to input field (maybe just as a string, with UTF-8 there's lots of options to use different arrows)

[thesoftwarephilosopher]

I like this idea a million percent.

[thefiredman]

yeah I want to have the option to make it AMOLED, the choose gui 👍🏻
also while I'm at it, thanks for your work, chipsenkbeil