Can't change the font size in kate

[Hicks]

Go to Kate, click in preferences, configure kate, type of font, select another size...
Can't change this number...

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: kate 4:15.08.2-0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4
Uname: Linux 4.2.0-34-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Mar 22 23:42:04 2016
InstallationDate: Installed on 2016-02-20 (31 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: kate
UpgradeStatus: No upgrade log present (probably fresh install)

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to review all reported bugs in a timely manner.

Ubuntu 15.10 (wily) reached end-of-life on July 28, 2016.

I'm setting the status of this bug to 'Incomplete' as it's not seen any activity for some time. If this is still relevant when using a currently maintained release of Ubuntu then please let us know which one(s) otherwise this bug report can be left to expire in approximately 60 days time.