pinafore/src/scss/themes/_base.scss

:root {
  $deemphasized-color: #666;

  --button-primary-bg: #{$main-theme-color};
  --button-primary-text: #{$secondary-text-color};
  --button-primary-border: #{darken($main-theme-color, 10%)};
  --button-primary-bg-active: #{lighten($main-theme-color, 9%)};
  --button-primary-bg-hover: #{lighten($main-theme-color, 5%)};

  --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: #{$border-color};
  --input-bg: #{$main-bg-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: #{$main-theme-color};
  --nav-active-bg: #{lighten($main-theme-color, 9%)};
  --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-a-selected-active-bg: #{lighten($main-theme-color, 17%)};
  --nav-svg-fill: #{$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};

  --account-profile-bg-backdrop-filter: #{rgba($main-bg-color, 0.7)};
  --account-profile-bg: #{rgba($main-bg-color, 0.9)};

  --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-text: #{$secondary-text-color};
  --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)};

  --file-drop-mask: #{rgba(255, 255, 255, 0.8)};

  --banner-fill: #{$main-theme-color};
}