add an original helper

packages/core/scss/bootstrap/apply.scss

@@ -36,7 +36,7 @@
 @import 'bootstrap/scss/placeholders';
 
 // Helpers
-@import 'bootstrap/scss/helpers';
+@import './override/helpers';
 
 // Utilities
 @import 'bootstrap/scss/utilities/api';

packages/core/scss/bootstrap/override/_helpers.scss

@@ -0,0 +1,12 @@
+@import 'bootstrap/scss/helpers/clearfix';
+@import './helpers/color-bg';
+@import 'bootstrap/scss/helpers/colored-links';
+@import 'bootstrap/scss/helpers/focus-ring';
+@import 'bootstrap/scss/helpers/icon-link';
+@import 'bootstrap/scss/helpers/ratio';
+@import 'bootstrap/scss/helpers/position';
+@import 'bootstrap/scss/helpers/stacks';
+@import 'bootstrap/scss/helpers/visually-hidden';
+@import 'bootstrap/scss/helpers/stretched-link';
+@import 'bootstrap/scss/helpers/text-truncation';
+@import 'bootstrap/scss/helpers/vr';

packages/core/scss/bootstrap/override/helpers/_color-bg.scss

@@ -0,0 +1,10 @@
+// All-caps `RGBA()` function used because of this Sass bug: https://github.com/sass/node-sass/issues/2251
+@each $color, $value in $theme-colors {
+  .text-bg-#{$color} {
+    // color: color-contrast($value) if($enable-important-utilities, !important, null);
+    color: var(--#{$prefix}#{$color}) if($enable-important-utilities, !important, null);
+    // background-color: RGBA(var(--#{$prefix}#{$color}-rgb), var(--#{$prefix}bg-opacity, 1)) if($enable-important-utilities, !important, null);
+    background-color: var(--#{$prefix}#{$color}-bg-subtle) if($enable-important-utilities, !important, null);
+    border: 1px solid var(--#{$prefix}#{$color}-border-subtle) if($enable-important-utilities, !important, null);
+  }
+}

packages/core/scss/bootstrap/utilities.scss

@@ -1,4 +1,4 @@
 @import 'init';
 
-@import 'bootstrap/scss/helpers';
+@import './override/helpers';
 @import 'bootstrap/scss/utilities/api';