# LeptonX Angular UI

To add `LeptonX` into your existing projects, follow the steps below.

- Firstly, install `@volosoft/abp.ng.theme.lepton-x` using the command below.
  `yarn add @volosoft/abp.ng.theme.lepton-x`

* Then, edit `angular.json` as follows:

Add theme-specific styles into the `styles` array of the file. Check the [Theme Configurations](../../framework/ui/angular/theme-configurations.md#lepton-x-commercial) documentation for more information.

Importing a CSS file as an ECMA module is not supported in Angular 14. Therefore, we need to add the styles in the angular.json file.

- At last, remove `ThemeLeptonModule` from `app.module.ts` and `shared.module.ts`, and import the following modules in `app.module.ts`

```ts
import {
  HttpErrorComponent,
  ThemeLeptonXModule,
} from "@volosoft/abp.ng.theme.lepton-x";
import { SideMenuLayoutModule } from "@volosoft/abp.ng.theme.lepton-x/layouts";

@NgModule({
  // ...
  imports: [
    // ...
    // ThemeLeptonModule.forRoot(), -> remove this line.
    ThemeLeptonXModule.forRoot(),
    SideMenuLayoutModule.forRoot(), // depends on which layout you choose
    // ...
  ],
  // ...
})
export class AppModule {}
```

If you want to use the **`Top Menu`** instead of the **`Side Menu`**, add TopMenuLayoutModule as below,and [this style imports](https://docs.abp.io/en/abp/7.4/UI/Angular/Theme-Configurations#lepton-x-commercial)

```ts
import {
  HttpErrorComponent,
  ThemeLeptonXModule,
} from "@volosoft/abp.ng.theme.lepton-x";
import { TopMenuLayoutModule } from "@volosoft/abp.ng.theme.lepton-x/layouts";

@NgModule({
  // ...
  imports: [
    // ...
    // ThemeLeptonModule.forRoot(), -> remove this line.
    ThemeLeptonXModule.forRoot(),
    TopMenuLayoutModule.forRoot(),
  ],
  // ...
})
export class AppModule {}
```

- At this point, `LeptonX` theme should be up and running within your application. However, you may need to overwrite some css variables based your needs for every theme available as follows:

```scss
:root {
  .lpx-theme-dark {
    --lpx-logo: url("/assets/images/logo/logo-light.svg");
    --lpx-logo-icon: url("/assets/images/logo/logo-light-icon.svg");
    --lpx-brand: #edae53;
  }

  .lpx-theme-dim {
    --lpx-logo: url("/assets/images/logo/logo-light.svg");
    --lpx-logo-icon: url("/assets/images/logo/logo-light-icon.svg");
    --lpx-brand: #f15835;
  }

  .lpx-theme-light {
    --lpx-logo: url("/assets/images/logo/logo-dark.svg");
    --lpx-logo-icon: url("/assets/images/logo/logo-dark-icon.svg");
    --lpx-brand: #69aada;
  }
}
```

If everything is ok, you can remove the `@volo/abp.ng.theme.lepton` in package.json

## Server Side

In order to migrate to LeptonX on your server side projects (Host and/or IdentityServer projects), please follow [Server Side Migration](https://docs.abp.io/en/commercial/latest/themes/lepton-x/mvc) document.