wiki, plugin panel documentation

[d.j.a.y at free.fr]

hi there,

if found those pages related to panel plugins dev,
https://wiki.xfce.org/dev/hig/panel-plugins - last up 2012/06/14
https://wiki.xfce.org/dev/howto/panel_plugins - lastup 2021/01/19 

all those informations are still revelant?

mybest.