DEV: Add high level system spec and clean up JS (#34)

scss/color-choice.scss

@@ -1,4 +1,4 @@
-.color-pallette-menu {
+.color-palette-menu {
   &__item .btn-icon-text.btn-flat {
     background-color: var(--d-content-background);
     width: 100%;
@@ -15,9 +15,12 @@
   &__item .btn-icon-text.btn-flat svg {
     color: var(--icon-color);
   }
+  &__item-choice.active.btn-icon-text.btn-flat {
+    background-color: var(--d-selected);
+  }
 }
 
-.user-color-pallette-content .fk-d-menu__inner-content {
+.user-color-palette-content .fk-d-menu__inner-content {
   border: none;
 }