uni-ui 规范颜色色板，通过内置样式快速指定元素前景和背景色。
primary
disable
light
success
disable
light
warning
disable
light
error
disable
light
info
disable
light
main-color
base-color
secondary-color
border-4
border-3
border-2
border-1
white
black
transparent
bg-color
shadow-sm
shadow-base
shadow-lg