Use Tokyo night theme

src/plugins/vuetify.js

@@ -5,15 +5,31 @@
  */
 
 // Styles
-import '@mdi/font/css/materialdesignicons.css'
-import 'vuetify/styles'
+import "@mdi/font/css/materialdesignicons.css";
+import "vuetify/styles";
+
+const tokyoNight = {
+  dark: true,
+  colors: {
+    background: "#1a1b26",
+    surface: "#24283b",
+    primary: "#7aa2f7",
+    secondary: "#b4f9f8",
+    accent: "#ff9e64",
+    error: "#f7768e",
+    info: "#2ac3de",
+    success: "#9ece6a",
+    warning: "#e0af68",
+  },
+};
 
 // Composables
-import { createVuetify } from 'vuetify'
+import { createVuetify } from "vuetify";
 
 // https://vuetifyjs.com/en/introduction/why-vuetify/#feature-guides
 export default createVuetify({
   theme: {
-    defaultTheme: 'system',
+    defaultTheme: "tokyoNight",
+    themes: { tokyoNight },
   },
-})
+});