diff --git a/src/main/webapp/vendor/nggrid/ng-grid.css b/src/main/webapp/vendor/nggrid/ng-grid.css
index f5d06b21..18a14af0 100644
--- a/src/main/webapp/vendor/nggrid/ng-grid.css
+++ b/src/main/webapp/vendor/nggrid/ng-grid.css
@@ -457,7 +457,7 @@
     width: 10px;
 }
 .ngUnPinnedIcon {
-    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAOwgAADsIBFShKgAAAABp0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjUuMTAw9HKhAAAAlElEQVQoU33PPQrCQBRF4fFnI2KfZVi5ARvdgo1l6mwmkCJVOgluwd5OwUoDtnoOxAei8cLXTN7cvEl/skCNDCMPfsUPO5zQwOHIDEvYtMURHe6wOVLgigvOePRyeDkyR4ln7wZ//7XfFBu8B23+aDJjrHGAwza7hjtHJvDmHg7b7Bru7AMjK7Rw2ObBVHDY5oGk9AKQNB2zy8MBTgAAAABJRU5ErkJggg==);
+    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAOwgAADsIBFShKgAAAABp0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjUuMTAw9HKhAAAAmElEQVQoU33PQapBURjA8UtkwJuaWYGSgfQWYBMvczPmTCzAAGVuaA228BZhRCkDGSmE31FucuRfvzq3vr5zT/JSjSU7DsypEPXDkDVn2hSIytJhw4kWGaLCxgHh2gt/RBuLzNhz5caWPjnSqqw4EraFfwznf8qklWjwy4IRTerkiQoPGtPl40OehcEJvcfXl8LglLfBJLkDcMgbgHlHhK8AAAAASUVORK5CYII=);
     background-repeat: no-repeat;
     position: absolute;
     height: 10px;