Color panels won't open

In Preferences > Formatting, in the Format Bar, as well as Compile > Formatting, the color panel won’t open/expand on click. The text color is stuck to black and I can’t freely select it.

Nothing appears in Console when I click the color plate. When Scrivener launches only this appears:

NSSoftLinking - The ShareKit framework’s library couldn’t be loaded from /System/Library/PrivateFrameworks/ShareKit.framework/Versions/A/ShareKit.

I have Scrivener version 2.8 (26295), OS X El Capitan 10.11.6, and iMac mid 2010.

I’ve answered this in your other thread…

Those panels open with a click and hold (or a right-click), not just a click. A couple of seconds will do. (There’s a popup help which explains this if you hover over the control).