Nice idea but I just to give some tip, simple is better. I think the colours even seeming logical are too many. And black for OK I don't think that is intuitive.

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Package Colours - 6 Major states of a Package

Black - latest version, all ok

Blue - latest version, bug report(s) outstanding

Red - out-of-date

Yellow - out-of-date, new package in Testing

Orange - out-of-date, new package in Testing, bug report(s) outstanding

Purple/Magenta - out-of-date, bug report(s) outstanding

I would suggest only three colours (background colour, grey font): ->Green - latest version, all ok ->Yellow - Out-of-date ->Red - Too many bugs, or non-functional at the moment (non-functional would be a tag for TU and so could give)

cheers, raca