Design
Material Design Color Palette https://www.materialpalette.com/
Best practices
https://github.com/futurice/android-best-practices
Google Play Services
https://developers.google.com/android/guides/setup
Keyboard Shortcuts
https://www.jetbrains.com/help/idea/intellij-idea-pro-tips.html https://gautam.io/work/android_studio_shortcuts/
Room
https://medium.com/google-developers/7-pro-tips-for-room-fbadea4bfbd1