I did some experimenting with the in-game flags this morning to help correct something that has been bugging me - the DEI has been tricking me into thinking I'm color blind.
To me, the famous Dutch 'Oranje' has on the in-game flag has looked a bit too... black. So I decided to inject some new life into the flags - and what a difference! Color perception/preference is a highly subjective field (and depends on monitor type, color calibration, etc. etc.), but I'd be curious to see what others think. I've attached my modified flag art as a zip file below. Just drop into your game ART folder, and you're good to go (but first make backups of the originals in case you don't like the new look ). Also, as a disclaimer I'm pretty sure that my 'old' flag files are mods themselves, so the true game originals could be just fine.
I didn't modify all the flags as I felt some were just fine (if it's not broken, don't fix it!).
In addition, I stumbled onto a neat interface improvement along the way. Once I decided that I was keeping the new flags, I knew I would need to update the flags with the supply warnings/indicators. But I noticed keeping the 'old' flags with the indicators helps visually differentiate the bases that warrant attention, as it sometimes can be easy to miss the thin exclamation marks on a cursory scan of a region. The darker flag even abstracts to the "power being out" (or soon to be).
Here's an example:
'New' Australian flag on left, 'old' flag on right w/ warning indicator: