色彩系统

色彩角色

M3 定义了 26+ 色彩角色，分为五大类：

类别	角色	说明
Primary	Primary, Primary Container, On Primary, On Primary Container	主品牌色
Secondary	Secondary, Secondary Container, On Secondary, On Secondary Container	辅助色
Tertiary	Tertiary, Tertiary Container, On Tertiary, On Tertiary Container	强调色
Error	Error, Error Container, On Error, On Error Container	错误/警告
Neutral	Surface, On Surface, Surface Variant, Outline, Outline Variant	中性色
Neutral Special	Inverse Surface, Inverse On Surface, Inverse Primary, Surface Tint	特殊中性
Scrim	Scrim	遮罩层

用户可通过壁纸生成主题色（User-generated color scheme）：