Where to set Application.Theme?

[JumpyVB]

I can't find the right way to change the icon theme.
Here are the steps to reproduce the problem
1) New project > Graphical application
2) Add Button1 with Picture "icon:/small/floppy"
3) Try to set icon theme:

Public Sub Form_BeforeArrange()
  Application.Theme = "Gambas"
  ' Application.Theme = "Gambas-Mono"
  ' Application.Theme = "Adwaita"
  ' Application.Theme = "Papirus"
End

4) Yeat default theme from desktop environment is show on Button1 when application is run

wrongicon.png (19.22 KiB) Viewed 920 times

PS: I am running Linux Mint 21.1 Cinnamon 5.6.8

[thatbruce]

It has to be done early, like in the main form _init or likewise.
BTW, you only get one shot, if you miss then you're stuck with whatever is loaded by default.
b

[JumpyVB]

Thank you.

Static Public Sub _init()
  Application.Theme = "Gambas"
  ' Application.Theme = "Gambas-Mono"
  ' Application.Theme = "Adwaita"
  ' Application.Theme = "Papirus"
End