man dircolors

It's a program that sets up colors for ls. For example you could have markdown files and go source files show different colors, it can use the 256 color space. It's a pretty powerful tool.

defaults

Some systems, notably void linux, have defaults defined for dircolors which can override your terminal colors. These defaults are found and set with the script in /etc/profile.d/colorls.sh. Basically it looks for /etc/DIRCOLORS, /etc/colors/DIR_COLORS.*, ~/.dircolors, ~/.dir_colors and a few other similar files. The local ones override the global ones.

disable / override

You can disable / override the system defaults by simply creating touch ~/.dircolors and logging back in. You could obviously put an actual config in there to use.