This is some text that has @(bold:@(red:c)@(yellow:o)@(green:l)@(cyan:o)@(blue:r)@(magenta:s))!

@(fg=#aaf,b:You can have @(red:nested) color directives and stuff (even in
parens) will be handled @(i:right))

@(dim:The output @(bold:ANSI) sequences will be optimal, even if you have
nested stuff like bold and dim)

(which is distinct from @(bold:BOLD) by itself)