Question 1

How to change Angular Material theme color dynamically?

Accepted Answer

Use the MaterialCssVarsService to set colors at runtime. Inject the service and call methods like setPrimaryColor() with hex values, as shown in the component example. This updates CSS variables instantly without reloading.

Question 2

angular-material-css-vars vs Angular Material built-in theming?

Accepted Answer

This library adds dynamic theming via CSS variables for runtime changes, while built-in theming is static. It's better for user-customizable themes but adds setup complexity and lacks M3 support.

Question 3

How to implement dark mode with angular-material-css-vars?

Accepted Answer

Call setDarkTheme(true) on the MaterialCssVarsService. The library toggles a body class for dark theme, and you can customize selectors via SCSS variables like $dark-theme-selector during initialization.

Question 4

Does angular-material-css-vars work with Angular Material M3?

Accepted Answer

No, it only supports M2. The README links to an issue about M3 support being unavailable, so avoid it if you're using Angular Material v18 or later with M3 themes.

Question 5

How to set up angular-material-css-vars in standalone Angular?

Accepted Answer

In standalone apps, use provideMaterialCssVars() in your app.config.ts providers, passing options like primary color. This mirrors the module setup but uses Angular's standalone API, as detailed in the README.

Question 6

What are the utility mixins for in angular-material-css-vars?

Accepted Answer

They help integrate theme colors into custom SCSS styles. For instance, use mat-css-color-and-contrast(300) to apply color and contrast together, streamlining styling beyond Angular Material components.

angular-material-css-vars

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