refactor: Checkbox styling.

bin/css/cologne.blue.css

@@ -59,7 +59,12 @@ input[type="checkbox"]:checked {
     background: #d0e2f7;
 }
 
-input[type="checkbox"]:checked:after {
+label:hover input[type="checkbox"] {
+    background: #d0e2f7;
+    color: #26558a;
+}
+
+input[type="checkbox"]:checked {
     color: #3986dd;
 }
 

bin/css/form.css

@@ -85,7 +85,6 @@ input[type="checkbox"]:checked:active {
 }
 
 input[type="checkbox"]:checked:after {
-    color: #99a1a7;
     content: '\2714';
     font-size: 14px;
     left: 4px;