Yea, there's good and bad to be had from using Apple's color panel, and this would be one of the bad ones. We'd have to re-engineer this to give you lists (doable, if enough people think it's a big deal and there's not a reasonable workaround).
But try this workaround: Close SketchUp Pro. Open /Applications/Utilities/Terminal.app and type or copy / paste this line in (at your own risk, Earth will stop to rotate and we'll be sucked into a black hole, all disclaimers, etc, etc...):
defaults write com.google.sketchuppro7 NSInitialToolTipDelay -int 100
so it's now responding at 100 milliseconds. If you don't like that, you can delete the defaults or adjust the "100" number to something that works for you. To delete, quite SketchUp Pro, type:
defaults delete com.google.sketchuppro7 NSInitialToolTipDelay
Be careful to get ALL of that, because leaving off the "NSInitialToolTipDelay" will delete all of your preferences. Let me know if that helps.
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