dots/usr/share/themes/Dracula/gtk-3.20/widgets/_checks-radios.scss

/*************************
 * Check and Radio Items *
 *************************/
// draw regular check and radio items using our PNG assets
// all assets are rendered from assets.svg. never add pngs directly


// unchecked
@each $s,$un in ('','-unchecked'),
                  (':hover', '-unchecked-hover'),
                  (':active', '-unchecked-active'),
                  (':backdrop', '-unchecked'),
                  (':disabled', '-unchecked'),
                  (':disabled:backdrop', '-unchecked') {
  check#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/checkbox#{$un}.png"),url("../assets/checkbox#{$un}@2.png")), -gtk-scaled(url("../assets/checkbox#{$un}.png"),url("../assets/checkbox#{$un}@2.png")));
    -gtk-icon-shadow: none;
  }
  radio#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/radio#{$un}.png"),url("../assets/radio#{$un}@2.png")), -gtk-scaled(url("../assets/radio#{$un}.png"),url("../assets/radio#{$un}@2.png")));
    -gtk-icon-shadow: none;
  }
}

// checked
@each $s,$ch in (':checked', '-checked'),
                  (':checked:hover', '-checked-hover'),
                  (':checked:active', '-checked-active'),
                  (':checked:backdrop', '-checked'),
                  (':checked:disabled', '-checked'),
                  (':checked:disabled:backdrop', '-checked') {
  check#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/checkbox#{$ch}.png"),url("../assets/checkbox#{$ch}@2.png")), -gtk-scaled(url("../assets/checkbox#{$ch}.png"),url("../assets/checkbox#{$ch}@2.png")));
    -gtk-icon-shadow: none;
  }
  radio#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/radio#{$ch}.png"),url("../assets/radio#{$ch}@2.png")), -gtk-scaled(url("../assets/radio#{$ch}.png"),url("../assets/radio#{$ch}@2.png")));
    -gtk-icon-shadow: none;
  }
}

// mixed
@each $s,$mx in (':indeterminate', '-mixed'),
                  (':indeterminate:hover', '-mixed-hover'),
                  (':indeterminate:active', '-mixed-active'),
                  (':indeterminate:backdrop', '-mixed'),
                  (':indeterminate:disabled', '-mixed-insensitive'),
                  (':indeterminate:disabled:backdrop', '-mixed-insensitive') {
  check#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/checkbox#{$mx}.png"),url("../assets/checkbox#{$mx}@2.png")), -gtk-scaled(url("../assets/checkbox#{$mx}.png"),url("../assets/checkbox#{$mx}@2.png")));
    -gtk-icon-shadow: none;
  }
  radio#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/radio#{$mx}.png"),url("../assets/radio#{$mx}@2.png")), -gtk-scaled(url("../assets/radio#{$mx}.png"),url("../assets/radio#{$mx}@2.png")));
    -gtk-icon-shadow: none;
  }
}

// unchecked:selected
@each $s,$un in (':selected','-unchecked'),
                  (':hover:selected', '-unchecked'),
                  (':active:selected', '-unchecked'),
                  (':backdrop:selected', '-unchecked'),
                  (':disabled:selected', '-unchecked'),
                  (':disabled:backdrop:selected', '-unchecked') {
  check#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/checkbox#{$un}.png"),url("../assets/checkbox#{$un}@2.png")), -gtk-scaled(url("../assets/checkbox#{$un}.png"),url("../assets/checkbox#{$un}@2.png")));
    -gtk-icon-shadow: none;
  }
  radio#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/selected-radio#{$un}.png"),url("../assets/selected-radio#{$un}@2.png")), -gtk-scaled(url("../assets/selected-radio#{$un}.png"),url("../assets/selected-radio#{$un}@2.png")));
    -gtk-icon-shadow: none;
  }
}

// checked:selected
@each $s,$ch in (':checked:selected', '-checked'),
                  (':checked:hover:selected', '-checked'),
                  (':checked:active:selected', '-checked'),
                  (':checked:backdrop:selected', '-checked'),
                  (':checked:disabled:selected', '-checked'),
                  (':checked:disabled:backdrop:selected', '-checked') {
  check#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/checkbox#{$ch}.png"),url("../assets/checkbox#{$ch}@2.png")), -gtk-scaled(url("../assets/checkbox#{$ch}.png"),url("../assets/checkbox#{$ch}@2.png")));
    -gtk-icon-shadow: none;
  }
  radio#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/selected-radio#{$ch}.png"),url("../assets/selected-radio#{$ch}@2.png")), -gtk-scaled(url("../assets/selected-radio#{$ch}.png"),url("../assets/selected-radio#{$ch}@2.png")));
    -gtk-icon-shadow: none;
  }
}


// mixed:selected
@each $s,$mx in (':indeterminate:selected', '-mixed'),
                  (':indeterminate:hover:selected', '-mixed'),
                  (':indeterminate:active:selected', '-mixed'),
                  (':indeterminate:backdrop:selected', '-mixed'),
                  (':indeterminate:disabled:selected', '-mixed'),
                  (':indeterminate:disabled:backdrop:selected', '-mixed') {
  check#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/selected-checkbox#{$mx}.png"),url("../assets/selected-checkbox#{$mx}@2.png")), -gtk-scaled(url("../assets/selected-checkbox#{$mx}.png"),url("../assets/selected-checkbox#{$mx}@2.png")));
    -gtk-icon-shadow: none;
  }
  radio#{$s}{
    -gtk-icon-source: if($variant == 'light', -gtk-scaled(url("../assets/selected-radio#{$mx}.png"),url("../assets/selected-radio#{$mx}@2.png")), -gtk-scaled(url("../assets/selected-radio#{$mx}.png"),url("../assets/selected-radio#{$mx}@2.png")));
    -gtk-icon-shadow: none;
  }
}


// selection-mode unchecked
@each $s,$un in ('','-unchecked'),
                  (':hover', '-unchecked-hover'),
                  (':active', '-unchecked-active'),
                  (':backdrop', '-unchecked-backdrop'),
                  (':disabled', '-unchecked-insensitive'),
                  (':disabled:backdrop', '-unchecked-backdrop-insensitive') {
  .view.content-view check#{$s},
  .view.content-view.check#{$s}{
    -gtk-icon-source: -gtk-scaled(url("../assets/selection-mode-checkbox#{$un}.png"),url("../assets/checkbox#{$un}@2.png"));
    -gtk-icon-shadow: none;
  }
  .view.content-view radio#{$s},
  .view.content-view.radio#{$s}{
    -gtk-icon-source: -gtk-scaled(url("../assets/selection-mode-radio#{$un}.png"),url("../assets/radio#{$un}@2.png"));
    -gtk-icon-shadow: none;
  }
}

checkbutton.text-button, radiobutton.text-button {
  // this is for a nice focus on check and radios text
  padding: 2px 0;
  outline-offset: 0;

  label:not(:only-child) {
    &:first-child { margin-left: 4px; }
    &:last-child { margin-right: 4px; }
  }
}

check,
radio {
  margin: 0 4px;

  min-height: 16px;
  min-width: 16px;
  border: none;

  menu menuitem & {
    margin: 0; // this is a workaround for a menu check/radio size allocation issue

    &, &:hover, &:disabled { //FIXME use button reset mixin
      min-height: 14px;
      min-width: 14px;
      background-image: none;
      background-color: transparent;
      box-shadow: none;
      -gtk-icon-shadow: none;
      color: inherit;
      border-color: currentColor;
      animation: none;
    }
  }
}