In this tutorial, we will explore how to create Angular Material 8 custom theme from scratch in less than 5 minutes in an Angular project. Angular material offers pre-built ui themes with primary, warning, and accent color options. If you are working on a real-world angular application, in that case, you might need to create a custom angular material theme to make your project brand look better.
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https://www.positronx.io/create-angular-material-8-custom-theme/