Just checked out this Buttercup thing you mentioned. Dear god, over 70MB for a simple desktop application. Got to love JavaScript, especially when it's being used for all the wrong purposes...
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Hello! Buttercup has a nice feature: it displays numbers in different colors

Would it be possible in KeePass' UI?
To show your support for such a feature you can vote for feature request 1731.
Just checked out this Buttercup thing you mentioned. Dear god, over 70MB for a simple desktop application. Got to love JavaScript, especially when it's being used for all the wrong purposes...