Circles around BGA pads...what do they mean?

I have this footprint, and it looked good in the footprint editor, but now there’s all these circles around the pads…what do these mean?

These are the netclass clearance bounaries.

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I find the indication of the clearances quite useful.

If you don’t like them however, you can turn them off with Pcbnew / Preferences / Preferences / Pcbnew / Display Options / Clearance Outlines

They depend on your clearance settings and basically tell you which area around the pad cannot contain traces assigned to different nets. (It’s fine if the circles overlap, but a circle may not contain any other copper items)


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