fix: use looks secondary rather than tertiary color

Author: Andy O'Neill

src/components/color-picker/color-picker.css

@@ -80,7 +80,7 @@
 }
 
 .active-swatch {
-    border: 1px solid $looks-tertiary;
+    border: 1px solid $looks-secondary;
     box-shadow: 0px 0px 0px 3px $looks-transparent;
 }
 

src/components/color-picker/icons/fill-horz-gradient-enabled.svg

@@ -7,7 +7,7 @@ $arrow-border-width: 14px;
     border-radius: 5px;
     overflow: visible;
     min-width: 3.5rem;
-    color: $looks-tertiary;
+    color: $looks-secondary;
     padding: .5rem;
 }