I3 change file manager

i want to change from using thunar to pcmanfm. ive gone into the i3 config and changed any instance of thunar to pcmanfm however when i click the folder icon thunar opens.
do i have to change something else?

If by “folder icon” you mean the one on your bar/taskbar, yes, you may need to change it to run/link to pcmanfm.

Are you using i3bar, polybar, or another like Xfce4-panel?