pub fn parse_colorfgbg(value: &str) -> Option<Theme>Expand description
Parses COLORFGBG ("fg;bg", or "fg;dark_bg;bg" on some terminals —
only the last field is ever the background) into a Theme using the
conventional xterm 16-color palette: indices 0-6 and 8 are dark, 7 and
9-15 are light.