FFS, since the very first v5.0 release this issue has been around, I gave you the benifit of a doubt and held off upgrading saying to my self it will get fixed in the 'next' update, but nope, there have been several releases now and it's still there. I guess it's time to complain.
Do those checkmarks look like checkmarks? Do those icons look smooth? I keep seeing "- Minor GUI Improvements." in the changelogs, but I doubt that's anything but to pad your patchnotes to look like you do things at this point.
There was a suggestion on how to fix this back when it was released, adding higher res images or something but looks like it got deleted, so thats cool I guess.
To add, I'm totally willing to be someones guinea pig in order to help with this issue anyway that I can, if you need me to try out dev builds or whatever just PM me, I just really want to see this thing get fixed. :/