• It is not possible to change font size, but possible to change color in Gems by default.

  • You can change colors in "Advanced settings", the available options here is depending on "Basic settings" -> "Chart type".

           

  • If you want to do beyond the above, please go through below link: CCS Adaptions to change font size and colors

           http://www.docu-pc.com/pc2/doku.php?id=pcmobile:userguide:admin:advan&#css_adaptions