Flat button with inverted colors (accent color background) · Issue #7264 · angular/components · GitHub
Adithya | adi.so on Twitter: "#AngularTip Extend Angular Material Button to make a translucent button 🥳 We create a directive and then just mess around with the background and font color of
mat-button change color on click | W3hubs.com
Angular Material Button
Angular material design - how to add custom button color? - Stack Overflow