Old Man Nack would’ve killed for this back in his designer days:
As Design Taxi writes,
“Material Theming” effectively fixes a core gripe of the original “Material Design”: that virtually every Android app looks the “same,” or made by Google, which isn’t ideal for brands.
The tool is currently available on Sketch, and you can use it by downloading the “Material” plugin on the app. Google aims to expand the system regularly, and will roll out new options such as animations, depth controls, and textures, next.