XYplorer Beta Club

Not a wish, just a suggestion.
This image is obviously fake.
Could be a Toolbar icon.

But I'd like options to control if the pizza is made of files in the current folder and/or subfolders.

Such diagrams are super un-informative. If anything like this, it's better to have "areas view"(like WinDirStat and Sequoia), 'cause those really show "how much space" anything takes in comparison.
But since it already exist, why not simply use that.