fix: optimize palette

src/scss/definitions/_palette.scss

@@ -25,19 +25,9 @@ $palette: (
   "yellow":#b58900,
   "grey":#586e75,
   "dark2":#073642,
-  "light2":#eee8d5,
-  "gray2":#657b83,
-  "gray3":#839496,
-  "gray4":#93a1a1);
+  "light2":#eee8d5);
 
 $semantics: (
-  "font":"dark2",
-  "font-light":"light",
-  "background":"light",
-  "background-alt":"light2",
-  "link":"skyblue",
-  "selection":"skyblue",
-  "mark":"yellow",
   "primary":"violet",
   "secondary":"skyblue",
   "warning":"orange",
@@ -46,11 +36,25 @@ $semantics: (
   "success":"green",
   "muted":"grey");
 
+$helpers: (
+  "font":"dark2",
+  "font-light":"light",
+  "background":"light",
+  "background-alt":"light2",
+  "link":"skyblue",
+  "selection":"skyblue",
+  "mark":"yellow",
+);
+
 @function get-color($name) {
-    @if map-has-key($semantics, $name) {
-        @return map-get($palette, map-get($semantics, $name));
+    @if map-has-key($helpers, $name) {
+        @return map-get($palette, map-get($helpers, $name));
     } @else {
-        @return map-get($palette, $name);
+      @if map-has-key($semantics, $name) {
+          @return map-get($palette, map-get($semantics, $name));
+      } @else {
+          @return map-get($palette, $name);
+      }
     }
 }