Dynamic item height support

[sashoa]

Hi, I know it hasn't been any changes to the project for a long time, but I want to know if this can be achieved, my use case is the following:

I have items with variable text size that should be set as item label, so when the label is too big, it is wrapping to the next line and since the height for the tree items is fixed, there is a visual problem. I know that for the render area to show the items properly we need the item height. I'm wondering if someone has encountered this problem.