Allow colors to be assigned (by color name) on the command line

[jasonzio]

The built-in color assignment mechanism breaks down after the first 15 logs, and may make some choices that a human would consider to be poor. The tool should define at least a dozen colors and allow the user to specify them on the command line.

The tool should also allow the user to select a specific color (from the 255 standard ANSI colors) even if that color has no defined name.

[rhl-bthr]

The built-in color assignment mechanism breaks down after the first 15 logs,

Imo, A color assignment mechanism is not feasible to use with > 10 logs, since it becomes hard to keep track. So, this problem can be discarded

and may make some choices that a human would consider to be poor. The tool should
define at least a dozen colors and allow the user to specify them on the command line.

Imo, allowing users to choose colors is not required; letting users choose colors would just make the tool fancy. Instead we could use a better set of colors by removing the 'poor' choices.