I for one enjoyed trying out the different color schemes to see what looks good. Now what they mean by "limited time only", I have no idea. Are the colours goi

I for one enjoyed trying out the different color schemes to see what looks good. Now what they mean by "limited time only", I have no idea. Are the colours going to suddenly revert with a new version of the browser? If so, why? The FOMO marketing BS definitely puts a damper on the whole thing.