Angular UI: Basic Theme

The Basic Theme is a theme implementation for the Angular UI. It is a minimalist theme that doesn't add any styling on top of the plain Bootstrap. You can take the Basic Theme as the base theme and build your own theme or styling on top of it. See the Customization section.

If you are looking for a professional, enterprise ready theme, you can check the Lepton Theme, which is a part of the ABP Commercial.

See the Theming document to learn about themes.


This theme is already installed when you create a new solution using the startup templates. If you need to manually install it, follow the steps below:

  • Install the @abp/ng.theme.basic NPM package to your Angular project.
  • Open the src/app/app.module.ts file, import ThemeBasicModule (it can be imported from @abp/ng.theme.basic package), and add ThemeBasicModule.forRoot() to the imports array.
  • Open the src/app/shared/shared.module file, import ThemeBasicModule (it can be imported from @abp/ng.theme.basic package), and add ThemeBasicModule to the imports and exports array.

The ThemeBasicModule is registered own layouts (ApplicationLayoutComponent, AccountLayoutComponent, EmptyLayoutComponent) to a service which is exposed by @abp/ng.core package on application initialization.

Application Layout


Application Layout implements the following parts, in addition to the common parts mentioned above;

  • Logo area
  • Routes area
  • Language selection & user menu
  • Page Alerts

See Application Layout components:

application layout components

How to Use a Layout

Routes should be added to the menu by calling add method RoutesService. A layout can be set in the object of your route. See the modifying the menu for more information.


You have two options two customize this theme:

Overriding Styles / Components

In this approach, you continue to use the theme as an NPM package and customize the parts you need to. There are several ways to customize it;

Override the Styles

You can simply override the styles in the global styles (src/styles.scss) file of your application.

Override the Components

See the Component Replacement to learn how you can replace components, customize and extend the user interface.

Copy & Customize

You can run the following ABP CLI command in Angular project directory to copy the source code to your solution:

abp add-package @abp/ng.theme.basic --with-source-code

Or, you can download the source code of the Basic Theme, manually copy the project content into your project (projects/theme-basic folder), open angular.json file and add configuration below to the projects object:

    "projects": {
        "theme-basic": {
            "projectType": "library",
            "root": "projects/theme-basic",
            "sourceRoot": "projects/theme-basic/src",
            "prefix": "abp",
            "architect": {
                "build": {
                    "builder": "@angular-devkit/build-ng-packagr:build",
                    "options": {
                        "tsConfig": "projects/theme-basic/tsconfig.lib.json",
                        "project": "projects/theme-basic/ng-package.json"
                    "configurations": {
                        "production": {
                        "tsConfig": "projects/theme-basic/"

Then, open the tsconfig.json file and add new paths as follows:

"paths": {
    "@abp/ng.theme.basic": ["projects/theme-basic/src/public-api.ts"],
    "@abp/ng.theme.basic/testing": ["projects/theme-basic/testing/src/public-api.ts"]

You can now freely customize the theme based on your application requirements.

See Also

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