Major new feature, a custom advanced rule system to control what formats get saved:
The idea is that advanced users can use this feature to have CHS ignore formats that are unneeded and take up too much space, or keep a mostly text database with only a few exceptions where you want more formats, etc.
You could either set the default action to be to store all clipboard formats, and then just set a rule for blocking certain ones, or do the opposite, set the default action to reject all formats, and just set a rule to capture the rare ones you care about.
Just make sure you enable the formats in the main capture tab too.