pinafore/scss/themes/_base.scss

@mixin baseTheme() {

  $deemphasized-color: #666;

  --button-primary-bg: lighten($main-theme-color, 7%);
  --button-primary-text: $secondary-text-color;
  --button-primary-border: darken($main-theme-color, 30%);
  --button-primary-bg-active: lighten($main-theme-color, 1%);
  --button-primary-bg-hover: lighten($main-theme-color, 9%);

  --button-bg: darken($main-bg-color, 10%);
  --button-text: $main-text-color;
  --button-border: darken($border-color, 20%);
  --button-bg-active: darken($main-bg-color, 25%);
  --button-bg-hover: darken($main-bg-color, 5%);

  --input-border: $border-color;
  --anchor-text: $anchor-color;
  --main-bg: $main-bg-color;
  --body-bg: $body-bg-color;
  --body-text-color: $main-text-color;
  --main-border: $border-color;
  --svg-fill: $main-theme-color;

  --form-bg: darken($main-bg-color, 3%);
  --form-border: darken($border-color, 10%);

  --nav-bg: $main-theme-color;
  --nav-border: darken($main-theme-color, 10%);
  --nav-a-border: $main-theme-color;
  --nav-a-selected-border: $secondary-text-color;
  --nav-a-selected-bg: lighten($main-theme-color, 10%);
  --nav-svg-fill: $secondary-text-color;
  --nav-text-color: $secondary-text-color;

  --nav-a-selected-border-hover: $secondary-text-color;
  --nav-a-selected-bg-hover: lighten($main-theme-color, 15%);
  --nav-a-bg-hover: lighten($main-theme-color, 5%);
  --nav-a-border-hover: $main-theme-color;
  --nav-svg-fill-hover: $secondary-text-color;
  --nav-text-color-hover: $secondary-text-color;

  --action-button-fill-color: lighten($main-theme-color, 18%);
  --action-button-fill-color-hover: lighten($main-theme-color, 22%);
  --action-button-fill-color-active: lighten($main-theme-color, 5%);
  --action-button-fill-color-pressed: darken($main-theme-color, 7%);
  --action-button-fill-color-pressed-hover: darken($main-theme-color, 2%);
  --action-button-fill-color-pressed-active: darken($main-theme-color, 15%);

  --action-button-deemphasized-fill-color: $deemphasized-color;
  --action-button-deemphasized-fill-color-hover: lighten($deemphasized-color, 22%);
  --action-button-deemphasized-fill-color-active: lighten($deemphasized-color, 5%);
  --action-button-deemphasized-fill-color-pressed: darken($deemphasized-color, 7%);
  --action-button-deemphasized-fill-color-pressed-hover: darken($deemphasized-color, 2%);
  --action-button-deemphasized-fill-color-pressed-active: darken($deemphasized-color, 15%);

  --settings-list-item-bg: $main-bg-color;
  --settings-list-item-text: $main-theme-color;
  --settings-list-item-text-hover: $main-theme-color;
  --settings-list-item-border: $border-color;
  --settings-list-item-bg-active: darken($main-bg-color, 10%);
  --settings-list-item-bg-hover: darken($main-bg-color, 2%);

  --toast-bg: $toast-bg;
  --toast-border: $toast-border;
  --toast-text: $secondary-text-color;

  --mask-bg: $toast-bg;
  --mask-svg-fill: $secondary-text-color;
  --mask-opaque-bg: rgba($toast-bg, 0.8);
  --loading-bg: #ededed;

  --deemphasized-text-color:$deemphasized-color;
  --focus-outline: $focus-outline;

  --very-deemphasized-link-color: rgba($anchor-color, 0.6);
  --very-deemphasized-text-color: rgba(#666, 0.6);

  --status-direct-background: darken($body-bg-color, 5%);
  --main-theme-color: $main-theme-color;
  --warning-color: #e01f19;
  --alt-input-bg: rgba($main-bg-color, 0.7);

  --muted-modal-bg: transparent;
  --muted-modal-focus: #999;
  --muted-modal-hover: rgba(255, 255, 255, 0.2);

  --compose-autosuggest-item-hover: $compose-background;
  --compose-autosuggest-item-active: darken($compose-background, 5%);
  --compose-autosuggest-outline: lighten($focus-outline, 5%);

  --compose-button-halo: rgba(255, 255, 255, 0.1);
}