Listtree.MinLineHeight -- set minimum line height (V1.4)
Function
Sets the minimum line height for the listtree in pixels. Useful
e.g. if you have custom images.
Alternatively, you can also enable automatic line height calculation
for the listtree using the Listtree.AutoLineHeight attribute.
This is more convenient but requires at least MUI 4.0. See Listtree.AutoLineHeight for details.