Use modules folder

modules/fcitx5/default.nix

@@ -0,0 +1,22 @@
+{ pkgs, ... }:
+
+with import ../theme; let
+  themeFolder = ".local/share/fcitx5/themes/${theme}/";
+in
+{
+  i18n.inputMethod = {
+    enabled = "fcitx5";
+    fcitx5.addons = with pkgs; [ fcitx5-anthy ];
+  };
+
+  home.file = {
+    "${themeFolder}theme.conf".source = with colors; pkgs.substituteAll ({
+      src = ./theme.conf;
+      background = "${bg1}80";
+      highlight = bg0;
+    } // colors);
+    "${themeFolder}arrow.png".source = ./arrow.png;
+    "${themeFolder}radio.png".source = ./radio.png;
+    ".config/fcitx5/conf/classicui.conf".text = "Theme=${theme}";
+  };
+}

modules/fcitx5/theme.conf

@@ -0,0 +1,78 @@
+[Metadata]
+ScaleWithDPI=True
+
+[InputPanel]
+Font=Sans 13
+NormalColor=@fg0@
+HighlightCandidateColor=@fg1@;
+HighlightColor=@undefined@
+HighlightBackgroundColor=@undefined@
+Spacing=3
+
+[InputPanel/TextMargin]
+Left=10
+Right=10
+Top=6
+Bottom=6
+
+[InputPanel/Background]
+Color=@background@
+
+[InputPanel/Background/Margin]
+Left=2
+Right=2
+Top=2
+Bottom=2
+
+[InputPanel/Highlight]
+Color=@highlight@
+
+[InputPanel/Highlight/Margin]
+Left=10
+Right=10
+Top=7
+Bottom=7
+
+[Menu]
+Font=Sans 10
+NormalColor=@fg0@
+Spacing=3
+
+[Menu/Background]
+Color=@background@
+
+[Menu/Background/Margin]
+Left=2
+Right=2
+Top=2
+Bottom=2
+
+[Menu/ContentMargin]
+Left=2
+Right=2
+Top=2
+Bottom=2
+
+[Menu/Highlight]
+Color=@highlight@
+
+[Menu/Highlight/Margin]
+Left=10
+Right=10
+Top=5
+Bottom=5
+
+[Menu/Separator]
+Color=@highlight@
+
+[Menu/CheckBox]
+Image=radio.png
+
+[Menu/SubMenu]
+Image=arrow.png
+
+[Menu/TextMargin]
+Left=5
+Right=5
+Top=5
+Bottom=5