EDIT: pull requests with translations are welcome, but you'd have to speak Polish first, which takes us back to square one. Google translate is half-decent with this language though, so you might be able to run off of that.
Thanks I'll try this - I have discovered exactly the problem described i.e. Solarized does not have enough contrast when using shitty monitors or in a very bright room. Normally I just switch to a random high contrast theme on those days but maybe Selenized would be a universal solution.
https://github.com/jan-warchol/selenized/blob/master/whats-w...
Never looked back. Next best theme would have to be nordtheme.com