Slight change in Whoops colors

CHANGELOG.md

@@ -7,6 +7,7 @@
     * Made `modular` blueprint more flexible
     * Objects: Add protected function `getElement()` to get serialized value for a single property
     * `ObjectPropertyTrait`: Added protected functions `isPropertyLoaded()`, `offsetLoad()`, `offsetPrepare()` and `offsetSerialize()`    
+    * Slight modification of Whoops error colors
     * Updated vendor libs to latest
 1. [](#bugfix)
     * Date ordering should always be numeric [#1810](https://github.com/getgrav/grav/issues/1810)

system/assets/whoops.css

@@ -1,5 +1,5 @@
 body header {
-    background: #8552A2;
+    background: #3085EE;
 }
 
 body .left-panel {