@QuLogic, I just tested themacosx cursors a bit. It didn't have anything to do with this PR. Master is the same behavior as 3.4.2.

Somehow it has to do with the plotted mappable on the axes...

importmatplotlib.pyplotaspltfig,ax=plt.subplots()ax.contourf([[0,1], [2,3]])# cursor changes to the grab/zoom image# ax.imshow([[0, 1], [2, 3]])  # cursor does not changeplt.show()

It works properly for contourf, but not for imshow/pcolormesh. The cursor works as expected for all mappables withqt5agg.

Originally posted by@greglucas in#20620 (comment)