update signature popup template to take color params

Author: kbjr

signature_popup.html

@@ -6,8 +6,20 @@
     margin: 5px;
     word-wrap:break-word;
 }
+.name {
+	color: ${nameColor};
+}
+.type {
+	color: ${typeColor};
+}
+.param {
+	color: ${paramColor};
+}
+.text {
+	color: ${textColor};
+}
 </style>
 <div><b>${signature}</b></div>
 <div style="margin-left: 15px">${description}</div>
 <div>${activeParam}</div>
-<div><a href="${link}">${index}</a></div>
+<div><a href="${link}">${index}</a></div>