Minor fixes in CSS colors

assets/css/default.css

@@ -1,6 +1,6 @@
 .channel-owner {
   background-color: #008BEC;
-  color: beige;
+  color: #fff;
   border-radius: 9px;
   padding: 1px 6px;
 }
@@ -63,7 +63,7 @@ div {
 }
 
 button.pure-button-primary,
-a.pure-button-primary {
+a.pure-button-primary, .channel-owner:hover {
   background-color: #a0a0a0;
   color: rgba(35, 35, 35, 1);
 }

assets/css/lighttheme.css

@@ -4,6 +4,6 @@ a:active {
 }
 
 a {
-  color: #0093ff;
+  color: #61809b;
   text-decoration: none;
 }