Adds theme related variables and mixin call.

Author: jonesiscoding

scss/_card-variables.scss

@@ -27,6 +27,18 @@ $card-link-hover-color:    color("white") !default;
 $card-default-header-bg:   gray(400) !default;
 $card-default-border:      gray(500) !default;
 
+// Accordions
+$card-accordion-indicator: '<svg xmlns="http://www.w3.org/2000/svg" width="8" height="8" viewBox="0 0 8 8"><path d="M1.5 0l-1.5 1.5 4 4 4-4-1.5-1.5-2.5 2.5-2.5-2.5z" transform="translate(0 1)" /></svg>' !default;
+$card-accordion-indicator-size: 1rem !default;
+
 @if $enable-framework == false {
   @include set-component("icons", false);
 }
+
+@if not(variable-exists(icon-css-prefix)) {
+  @if variable-exists(fa-css-prefix) {
+    $icon-css-prefix: $fa-css-prefix !global;
+  } @else {
+    $icon-css-prefix: ico !global;
+  }
+}

scss/_card.scss

@@ -307,5 +307,5 @@
 }
 
 @if component("icons") {
-  @include accordion-indicator($card-spacer-x);
+  @include card-accordion-indicator($card-accordion-indicator, $card-accordion-indicator-size, $card-spacer-x);
 }