app/assets/stylesheets/components/_buttons.sass
$button-border-radius: 4px
$button-primary-color: $green
$button-secondary-color: $grey-2
$button-warning-color: $red
.button
@include button($grey-3)
.button-primary
@include button($button-primary-color)
.button-secondary
@include button($button-secondary-color)
.button-warning
@include button($button-warning-color)