Deleting a Metronic Theme

Metronic theme currently has 13 different themes and ASP.NET Zero includes them all. However, you might want to use only specific themes and delete some others. This document explains how to delete a theme option from ASP.NET Zero. In this document, deleting Theme2 will be explained. You can apply the same steps to delete other theme options.

.NET Part

• Go to *.Application.Shared project. Open AppConsts.cs and delete the Theme2 field.

• Go to *.Web.Core project:

  • Delete Theme2UiCustomizer.cs
  • Open UiThemeCustomizerFactory.cs and delete Theme2 code parts in GetUiCustomizerInternal function.

• Go to *.Core project. Open AppSettingProvider.cs and delete GetTheme2Settings function and its call in GetSettingDefinitions.

React Part

1. Delete Theme Layout Components

Go to src/pages/admin/components/layout/themes/ folder:

• Delete the theme2/ folder entirely (contains Theme2Layout.tsx, Theme2Header.tsx, Theme2Brand.tsx)

2. Update Theme Layout Registry

Open src/pages/admin/components/layout/themes/index.tsx:

• Remove the import statement:

  import Theme2Layout from "./theme2/Theme2Layout";
  

• Remove the case from the switch statement:

  case "theme2":
    return <Theme2Layout />;
  

3. Update Theme Selection Panel

Open src/pages/admin/components/layout/theme-selection/ThemeSelectionPanel.tsx:

• Remove "theme2" from the THEMES array:

  const THEMES: string[] = [
    "default",
    // "theme2", // Remove this line
    "theme3",
    // ...
  ];
  

4. Delete UI Customization Settings Form

Go to src/pages/admin/ui-customization/components/ folder:

• Delete Theme2SettingsForm.tsx

5. Update UI Customization Page

Open src/pages/admin/ui-customization/index.tsx:

• Remove the import statement:

  import Theme2SettingsForm from "./components/Theme2SettingsForm";
  

• Remove any Theme2 related rendering logic in the component.

6. Delete Theme Assets (Optional)

If you want to reduce bundle size, delete the theme assets:

• Delete metronic/themes/theme2/ folder
• Delete public/assets/common/styles/themes/theme2/ folder
• Delete public/assets/common/images/metronic-themes/theme2.png

Database Cleanup

If you are deleting a theme on an already published application, don't forget to delete records in the AbpSettings table:

• Records where Name equals App.UiManagement.Theme and Value equals theme2
• Records where Name starts with Theme2.

DELETE FROM AbpSettings WHERE Name = 'App.UiManagement.Theme' AND Value = 'theme2';
DELETE FROM AbpSettings WHERE Name LIKE 'Theme2.%';

Summary of Files to Delete/Modify