[sharyanto]

I would recommend my small library Color::ANSI::Util (https://metacpan.org/module/Color::ANSI::Util ) which has ansifg($rgb) and ansibg($rgb) function. They can detect terminal's color depth and output either 24-bit/256-color/16-color ANSI color escape codes.

But I guess the author wants to avoid using non-core dependencies.

Cool script, anyhow! I spent a lot of times looking at this kind of activity graph on Github.

As already submitted to the Github issues, the ability to show activity of multiple git repos as a single graph would be neat, as we tend work across multiple git repos.