keeweb/app/styles/base/_theme-vars.scss

@function set-theme-vars($t) {
  @return map-merge($t, (
    muted-color: mix(map-get($t, medium-color), map-get($t, background-color), map-get($t, mute-percent)),
    muted-color-border: mix(map-get($t, medium-color), map-get($t, background-color), semi-mute-percent(map-get($t, mute-percent))),
    text-selection-bg-color: rgba(map-get($t, action-color), .3),
    text-selection-bg-color-error: rgba(map-get($t, error-color), .8),
    text-semi-muted-color: mix(map-get($t, action-color), map-get($t, text-color), .5),
    text-contrast-action-color: text-contrast-color(map-get($t, action-color), map-get($t, color-lightness-shift), map-get($t, background-color), map-get($t, text-color)),
    text-contrast-error-color: text-contrast-color(map-get($t, error-color), map-get($t, color-lightness-shift), map-get($t, background-color), map-get($t, text-color)),

    base-border-color: mix(map-get($t, medium-color), map-get($t, background-color), 50%),
    accent-border-color: mix(map-get($t, medium-color), map-get($t, background-color), 65%),
    light-border-color: mix(map-get($t, medium-color), map-get($t, background-color), map-get($t, light-border-percent)),
    form-box-shadow-color-focus: lightness-alpha(map-get($t, action-color), -5%, -.3),
    form-box-shadow-color-focus-error: lightness-alpha(map-get($t, error-color), -5%, -.3),
    dropdown-box-shadow-color: rgba(map-get($t, medium-color), .05),

    secondary-background-color: mix(map-get($t, medium-color), map-get($t, background-color), 10%),
    intermediate-background-color: mix(map-get($t, medium-color), map-get($t, background-color), 3%),
    intermediate-pressed-background-color: mix(map-get($t, medium-color), map-get($t, background-color), 2.6%),
    disabled-background-color: shade(map-get($t, background-color), 5%),
    action-background-color-focus: shade(map-get($t, action-color), 20%),
    action-background-color-focus-tr: rgba(shade(map-get($t, action-color), 20%), .1),
    error-background-color-focus: shade(map-get($t, error-color), 20%),
    error-background-color-focus-tr: rgba(shade(map-get($t, error-color), 20%), .1),
    action-background-color-active: shade(map-get($t, action-color), 25%),
    action-background-color-active-tr: rgba(shade(map-get($t, action-color), 25%), .15),
    error-background-color-active: shade(map-get($t, error-color), 25%),
    error-background-color-active-tr: rgba(shade(map-get($t, error-color), 25%), .15),
    modal-background-color: rgba(map-get($t, background-color), map-get($t, modal-opacity)),
    modal-background-color-tr: rgba(map-get($t, background-color), 0),
  ));
}