using wmsystemtray and Kwin system rules (SystemSettings>Window mangement>Window Rules) I managed to create a new sys. tray that shows the tixati (and other) icon .
1. add a spacer to the panel
2. add the rules for example:
my rules - my panel is on the bottom of the screen - you probably have to adjust position and size.
Description=Application settings for wmsystemtray
above=true
aboverule=2
clientmachine=
SET your pc name here
clientmachinematch=0
desktop=-1
desktoprule=2
noborder=true
noborderrule=2
position=1150,990
positionrule=2
size=100,30
sizerule=2
skippager=true
skippagerrule=2
skipswitcher=true
skipswitcherrule=2
skiptaskbar=true
skiptaskbarrule=2
title=wmsystemtray
titlematch=0
type=0
typerule=2
wmclass=wmsystemtray0 wmsystemtray
wmclasscomplete=true
wmclassmatch=1
3. start wmsystemtray --non-wmaker --bgcolor white
reference:
https://forum.kde.org/viewtopic.php?f=111&t=122722 ;
http://blog.martin-graesslin.com/blog/2014/06/where-are-my-systray-icons/