[bugfix] Plugins(VRCT Subtitles as testing one): Apply styles by importing css file.

src-ui/plugins/dev_plugin_subtitles/index.jsx

@@ -0,0 +1,37 @@
+import { initStore, StoreContext } from "./store/store.js";
+import { SubtitleSystemContainer } from "./subtitle_system_container/SubtitleSystemContainer";
+import { SubtitlesController } from "./subtitle_system_container/_controllers/SubtitlesController.jsx";
+
+export const init = (plugin_context) => {
+    initStore(plugin_context.createAtomWithHook);
+    const { logic_configs } = plugin_context;
+
+    loadPluginCSS("./main.css");
+
+    const EntryComponents = () => {
+        return (
+            <StoreContext.Provider value={logic_configs}>
+                <SubtitlesController />
+
+                <SubtitleSystemContainer />
+            </StoreContext.Provider>
+        );
+    };
+
+    plugin_context.registerComponent(EntryComponents);
+};
+
+export default init;
+
+
+// CSS を動的に読み込む関数
+const loadPluginCSS = (cssUrl) => {
+    if (typeof document === "undefined") return;
+    // すでに読み込まれているかチェック
+    if (document.getElementById("plugin-main-css")) return;
+    const link = document.createElement("link");
+    link.rel = "stylesheet";
+    link.href = cssUrl;
+    link.id = "plugin-main-css";
+    document.head.appendChild(link);
+};