Fix corrupted pen file, adjust warning color

Author: ritikrishu

test-fixtures/designs/random.pen

@@ -6478,7 +6478,7 @@
     },
     "--terracotta": {
       "type": "color",
-      "value": "#C05A3C"
+      "value": "#C05A3D"
     },
     "--text-light": {
       "type": "color",
@@ -6494,8 +6494,7 @@
     },
     "--warning": {
       "type": "color",
-      "value": "#C05A3C"
+      "value": "#C05A3D"
     }
   }
 }
-<!-- test trigger -->