- Layout — Color — Typography
- Surfaces -- E.g. Card, Table, And Page Backgrounds
- Content -- E.g. Text, Icons, Etc.
- Shapes -- E.g. Buttons, Information Banners, Etc.
- Inputs -- E.g. Fields, Dropdowns, Radios, Checks And Toggles
- Focus
- Typography -- E.g. Titles, Labels, Paragraphs, Etc.
- Effects -- E.g. Shadows, Etc.