let theme = import ./everforest; colors = { undefined = "#ff00ff"; fg1 = "#ffffff"; }; in { css = lib: lib.strings.concatStringsSep "\n" (lib.attrValues (lib.mapAttrs (k: v: " --${k}: ${v};") theme.colors)); } // theme // { colors = theme.colors // colors; } // { wallpaper = ../wallpapers/${theme.wallpaper}; }