diff -r ca25fdce3b85 -r 4da2414eabbc www/jqwidgets/styles/jqx.material-green.css
--- a/www/jqwidgets/styles/jqx.material-green.css	Wed Sep 26 11:45:10 2018 +0200
+++ b/www/jqwidgets/styles/jqx.material-green.css	Wed Sep 26 15:28:59 2018 +0200
@@ -1797,4 +1797,5 @@
 .jqx-editor-toolbar-button-material-green{
     border-color: #ddd;
     box-shadow: none !important;
+	color: #333;
 }
\ No newline at end of file