If you look at https://oozie.apache.org/docs/5.0.0-beta1/DG_SparkActionExtension.html
I'd have the old look and feel, I know there was a Jira to switch to Fluido skin that made things pop, see difference on main page https://oozie.apache.org/ Even worse it works with 4.3.0 but now with 5.0, does this Jira need to be applied to Branch 5.x and master? https://issues.apache.org/jira/plugins/servlet/mobile#issue/OOZIE-3163
