tabler/core/scss/_deprecated-props.scss

// The `--tblr-*-rgb` custom properties of older 1.x releases, as mixins: three
// bundles emit them (`tabler.css`, `tabler-props.css`, `tabler-themes.css`), so
// this module emits nothing on its own. See `_deprecated.scss` for the rest.
//
// Removed in 2.0, together with this file.
@use 'sass:color';
@use 'sass:map';
@use 'sass:math';
@use 'config' as *;

// `6, 111, 209`: whole numbers, as the 1.5 stylesheet had them.
@function deprecated-rgb-triplet($color) {
  $rgb: color.to-gamut($color, $space: rgb, $method: clip);
  @return math.round(color.channel($rgb, 'red', $space: rgb)), math.round(color.channel($rgb, 'green', $space: rgb)), math.round(color.channel($rgb, 'blue', $space: rgb));
}

// deprecated(2.0): `--tblr-*-rgb`. Tabler mixes colours with `color-mix()` and
// reads none of these. They are static, as they were in 1.5: overriding
// `--tblr-primary` does not change `--tblr-primary-rgb`.
@mixin deprecated-color-props() {
  @if $enable-deprecated {
    :root {
      @each $name, $color in map.merge($theme-colors, $social-colors) {
        --#{$name}-rgb: #{deprecated-rgb-triplet($color)};
        --#{$name}-lt-rgb: #{deprecated-rgb-triplet(color.mix($color, #fff, 10%, $method: rgb))};
      }
    }
  }
}

@mixin deprecated-theme-props() {
  @if $enable-deprecated {
    @each $name, $value in $extra-colors {
      [data-bs-theme-primary='#{$name}'],
      [data-theme-primary='#{$name}'] {
        --primary-rgb: #{deprecated-rgb-triplet($value)};
      }
    }
  }
}