BREAKING CHANGES: renamed Sass variables in toggle, checkbox, and
radio. Changed `media` in `component-mode-media-padding` (for example)
to `item-left`.
references #5925
this adds the functions necessary for the other modes as well
BREAKING CHANGE:
Can now pass contrast to the colors map:
```
$colors-ios: (
primary: (
base: #327eff,
contrast: yellow
),
secondary: (
base: #32db64,
contrast: hotpink
),
danger: #d91e18,
light: #f4f4f4,
dark: #222
) !default;
```
references #5445
