Updated event colors.

public/css/variables.less

@@ -3,18 +3,20 @@
 
 // colors
 @timeline-bg: #f5f5f5;
-@event-theme-color: #5cb85c;
-@event-plugin-color: #428bca;
-@event-core-color: #f0ad4e;
+@event-php-color: #B10DC9;
+@event-theme-color: #2ECC40;
+@event-plugin-color: #0074D9;
+@event-core-color: #FF851B;
+@event-sql-color: #FFDC00;
 @event-info-color: #5bc0de;
-@event-warning-color: #d9534f;
+@event-warning-color: #FF4136;
 @progress-bg: @timeline-bg;
 @progress-bar-bg: @event-info-color;
 
 // because admin bar is 99999
 @zindex-tooltip: 100000;
 @tooltip-max-width: 300px;
-@tooltip-color: #ccc;
+@tooltip-color: #eee;
 @tooltip-bg: #464646;
 @tooltip-arrow-width: 5px;
 @tooltip-arrow-color: @tooltip-bg;