Add project files.

ConstructorAppUI/wwwroot/AdminTheme/build/scss/plugins/_bootstrap-slider.scss

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+//
+// Plugin: Bootstrap Slider
+//
+
+// Tooltip fix
+.slider .tooltip.in {
+  opacity: $tooltip-opacity;
+}
+
+// Style override
+.slider {
+  &.slider-vertical {
+    height: 100%;
+  }
+  &.slider-horizontal {
+    width: 100%;
+  }
+}
+
+// Colors
+@each $name, $color in $theme-colors {
+  .slider-#{$name} .slider {
+    .slider-selection {
+      background: $color;
+    }
+  }
+}
+
+@each $name, $color in $colors {
+  .slider-#{$name} .slider {
+    .slider-selection {
+      background: $color;
+    }
+  }
+}
+
+@include dark-mode () {
+  .slider-track {
+    background-color: lighten($dark, 10%);
+    background-image: none;
+  }
+
+  @each $name, $color in $theme-colors-alt {
+    .slider-#{$name} .slider {
+      .slider-selection {
+        background: $color;
+      }
+    }
+  }
+
+  @each $name, $color in $colors-alt {
+    .slider-#{$name} .slider {
+      .slider-selection {
+        background: $color;
+      }
+    }
+  }
+}