click.style: add support for 256/RGB colors #1429
Merged
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This adds support for true-color text (using the \033[38;2;RRR;GGG;BBB escape sequence) and 256-color palette (using the \033[38;5;NNN escape sequence). It's backwards compatible with the current string-based colors, but adds a type-checking helper to handle integers or tuples/lists of 3 integers.