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It's the one I had to think about the most, so I don't want to forget
why I chose what I did.

This reverts commit 22c3a70b.

Not needed.

This reverts commit a59a99e5.

I want better control over colors on low-color terminals like the linux
console.  To do that I need to know when to enable bold to be able to
access (especially) bright white and bright black.  This move more data
into the Color class and tries to enforce a more functional style.

Slightly refactor color palette stuff in different terminals.

I changed my mind.

This reverts commit 04e2adc5.