Scawen, blue and red colors on Russian flag aren't radioactively bright. Blue is like that in Finnish flag in LFS, red is like that on Chech flag. I guess, the same applies to Slovenian flag.
I don't know if this is a widespread issue as no-one else has mentioned it, but here goes.
Since Y10, whenever I go into the "Game" menu under options, all of the left-hand options buttons dissapear...and soem strange textures/lines come up on the right hand side of the screen. It didn't do this before. Anyone else got this issue? I can try and get a screen grab if necessary...
I'm looking at the wiki infos, and by the looks of it, it should work, seeing it's mostly NT 5.0, where as XP is NT 5.1, and actually did add support for these sorts of languages.
Can you provide a screenshot of your issue, please? I'm using NT5.0 plus Y10 and cannot see anything unusual with 'Options -> Game'. The selection of Chinese, Japanese etc. after installing all language options (control panel) works without problems as well.
I'm thinking it might have something to do with my languages; for whatever reason (I can't remember, it happened a long time ago) most of them aren't installed except English...but this issue in the screenshot never happened before Y10.
I've been looking in the code to try and understand how this could happen. But all the code seems ok... we really need a reliable way to reproduce this one.