plugins/base16: add customColorScheme option

plugins/colorschemes/base16.nix

@@ -32,6 +32,53 @@ in {
         default = true;
         description = "Whether to install the matching plugin for your statusbar. This does nothing as of yet, waiting for upstream support.";
       };
+
+      customColorScheme =
+        helpers.mkNullOrOption
+        (with types;
+          submodule {
+            options =
+              listToAttrs
+              (
+                map
+                (
+                  colorId: rec {
+                    name = "base0" + colorId;
+                    value = mkOption {
+                      type = types.str;
+                      description = "The value for color ${name}.";
+                      example = "#16161D";
+                    };
+                  }
+                )
+                ["0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "A" "B" "C" "D" "E" "F"]
+              );
+          })
+        ''
+          Optionaly, you can provide a table specifying your colors to the setup function.
+
+          Example:
+          ```nix
+            {
+              base00 = "#16161D";
+              base01 = "#2c313c";
+              base02 = "#3e4451";
+              base03 = "#6c7891";
+              base04 = "#565c64";
+              base05 = "#abb2bf";
+              base06 = "#9a9bb3";
+              base07 = "#c5c8e6";
+              base08 = "#e06c75";
+              base09 = "#d19a66";
+              base0A = "#e5c07b";
+              base0B = "#98c379";
+              base0C = "#56b6c2";
+              base0D = "#0184bc";
+              base0E = "#c678dd";
+              base0F = "#a06949";
+            }
+          ```
+        '';
     };
   };
 
@@ -43,5 +90,9 @@ in {
     plugins.lightline.colorscheme = null;
 
     options.termguicolors = mkIf cfg.useTruecolor true;
+
+    extraConfigLua = mkIf (cfg.customColorScheme != null) ''
+      require('base16-colorscheme').setup(${helpers.toLuaObject cfg.customColorScheme})
+    '';
   };
 }

tests/test-sources/plugins/colorschemes/base16.nix

@@ -0,0 +1,43 @@
+{
+  # Empty configuration
+  empty = {
+    colorschemes.base16.enable = true;
+  };
+
+  # All the upstream default options of poimandres
+  defaults = {
+    colorschemes.base16 = {
+      enable = true;
+
+      useTruecolor = true;
+      colorscheme = "gruvbox-dark-hard";
+      setUpBar = true;
+      customColorScheme = null;
+    };
+  };
+
+  custom-colors = {
+    colorschemes.base16 = {
+      enable = true;
+
+      customColorScheme = {
+        base00 = "#16161D";
+        base01 = "#2c313c";
+        base02 = "#3e4451";
+        base03 = "#6c7891";
+        base04 = "#565c64";
+        base05 = "#abb2bf";
+        base06 = "#9a9bb3";
+        base07 = "#c5c8e6";
+        base08 = "#e06c75";
+        base09 = "#d19a66";
+        base0A = "#e5c07b";
+        base0B = "#98c379";
+        base0C = "#56b6c2";
+        base0D = "#0184bc";
+        base0E = "#c678dd";
+        base0F = "#a06949";
+      };
+    };
+  };
+}