Note: You should remove the old theme styles from "angular.json" if you are switching from "ThemeBasic" or "Lepton."
Look at the [Theme Configurations](../../UI/Angular/Theme-Configurations) list of styles. Depending on your theme, you can alter your styles in angular.json.
- Finally, remove `ThemeBasicModule` from `app.module.ts`, and import the related modules in `app.module.ts`
```js
@ -44,7 +40,7 @@ import { SideMenuLayoutModule } from "@abp/ng.theme.lepton-x/layouts";
imports: [
// ...
// do not forget to remove ThemeBasicModule
// do not forget to remove ThemeBasicModule or other old theme module