$tabstrip-background: transparent; $tab-title-background: $gray-light; $tab-title-background-hover: smartscale($tab-title-background, 5%); $tab-title-background-active: smartscale($tab-title-background, 3%); $tab-title-color: isitlight($tab-title-background); $tab-title-color-active: $tab-title-color; $tab-title-padding: $global-padding; $tab-content-padding: $global-padding;