Hi all,
I'm sure most of you noticed this issue, especially on slower computers.
If not, here is a video showing it:
You can notice for example when closing the Skyranger Ufopedia entry, the purple globe background turns yellow for one frame.
If not, I'm attaching also a screenshot of that one frame where you can see the issue.
I have been trying to solve this since I first found OpenXcom... for around 6 years now.
I have finally found something that makes the issue go away, but unfortunately creates a different (although arguably much less critical) issue.
Instead of colors going all crazy, there is an occasional all-black frame instead.
The all-black frame is related to it, but happens less often and isn't nearly as much disturbing.
However, since it is still not ideal, I have locked the "fix" under an entry in options.cfg
oxceEnablePaletteFlickerFix: true # default false
If you want to try it yourself, feel free... and please let me know how/if it helped for you and how bad the all-black frame issue is for you (it's quite erratic and unpredictable).
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Also, this entire issue seems to be related only to Software rendering (the first few display filters without * after the name).
So if you can switch to OpenGL rendering, I recommend using the "Raw*" filter (with 60 fps and VSync turned off)... this way you don't need the fix and everything should be fine.
If you can't switch to OpenGL, the fix does help a lot in my opinion, even though it's not absolutely perfect.
