Additional themes to provide.

Declarations
Type
attribute set of strings concatenated with "\n"
Default
{ }
Example
{
  dracula = builtins.readFile (pkgs.fetchFromGitHub {
    owner = "dracula";
    repo = "sublime"; # Bat uses sublime syntax for its themes
    rev = "26c57ec282abcaa76e57e055f38432bd827ac34e";
    sha256 = "019hfl4zbn4vm4154hh3bwk6hm7bdxbr1hdww83nabxwjn99ndhv";
  } + "/Dracula.tmTheme");
}