After zooming to a certain extent, canvas does not display the name like a normal MD file

After zooming to a certain extent, canvas does not display the name like a normal MD file. Because of this, I need to put a box on it.

You need to make its title display the same as the group name. In this way, when I zoom the whole, I can see what my canvas is.

Now it’s just showing the connection, but I don’t know the name.

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