darkened back-sub-alt more

public/mix-manifest.json

@@ -14,7 +14,7 @@
     "/css/dist/skins/skin-purple.css": "/css/dist/skins/skin-purple.css?id=ed339802f92e98ee5a1b",
     "/css/dist/skins/skin-purple-dark.css": "/css/dist/skins/skin-purple-dark.css?id=9dafcf0920f2681450f6",
     "/css/dist/skins/skin-yellow.css": "/css/dist/skins/skin-yellow.css?id=2b89bd74fcf3846791f5",
-    "/css/dist/skins/skin-yellow-dark.css": "/css/dist/skins/skin-yellow-dark.css?id=03d366bc4d9535ab3c52",
+    "/css/dist/skins/skin-yellow-dark.css": "/css/dist/skins/skin-yellow-dark.css?id=9e8cfd430e8a4cecff36",
     "/css/dist/skins/skin-blue-dark.css": "/css/dist/skins/skin-blue-dark.css?id=ad1ac8316e93597f9191",
     "/css/dist/skins/skin-orange-dark.css": "/css/dist/skins/skin-orange-dark.css?id=ddd1c21e2cfdaf500ef5",
     "/css/dist/skins/skin-orange.css": "/css/dist/skins/skin-orange.css?id=279fd3bd5a093698c223",
@@ -34,7 +34,7 @@
     "/css/dist/skins/skin-blue.min.css": "/css/dist/skins/skin-blue.min.css?id=dea194b1336f156866c2",
     "/css/dist/skins/skin-blue-dark.min.css": "/css/dist/skins/skin-blue-dark.min.css?id=ad1ac8316e93597f9191",
     "/css/dist/skins/skin-yellow.min.css": "/css/dist/skins/skin-yellow.min.css?id=2b89bd74fcf3846791f5",
-    "/css/dist/skins/skin-yellow-dark.min.css": "/css/dist/skins/skin-yellow-dark.min.css?id=03d366bc4d9535ab3c52",
+    "/css/dist/skins/skin-yellow-dark.min.css": "/css/dist/skins/skin-yellow-dark.min.css?id=9e8cfd430e8a4cecff36",
     "/css/dist/skins/skin-red.min.css": "/css/dist/skins/skin-red.min.css?id=b9d1005a03a7e60c138e",
     "/css/dist/skins/skin-red-dark.min.css": "/css/dist/skins/skin-red-dark.min.css?id=4b9b84247ac2b0798b14",
     "/css/dist/skins/skin-purple.min.css": "/css/dist/skins/skin-purple.min.css?id=ed339802f92e98ee5a1b",

resources/assets/less/skins/skin-yellow-dark.less

@@ -108,7 +108,7 @@ a {
   --background: #222;
   --back-main: #333;
   --back-sub: #3d4144;
-  --back-sub-alt: #919191;
+  --back-sub-alt: rgba(0, 0, 0, 0.36);
   --button-default: darken(@yellow, 15%);
   --button-primary: darken(@yellow, 25%);
   --button-hover: darken(@yellow, 30%);