Not sure everybody is aware of it. In case you need to make your label fit in a given space portion, you can use RTExtensibleLabel.

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v := RTView new.
s := RTExtensibleLabel new.
40 timesRepeat: [

e := s elementOn: 'Hello World'.
e extent: (50 atRandom + 10) @ (50 atRandom + 10).
v add: e. ].
RTFlowLayout on: v elements.
v

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