Sometimes it is easier to explain using pictures and texts that developers wrote in annotation. Annotations are great way to remind another/different developer what is the intent of the hard-to-understand sequence/workflow of activities. The use of pictures and texts is to make another/different developer understand the complexity in a sequence or workflow.
For the time being, I think it would be great if this were at least added to the Comment activity. I would imagine that this won’t be difficult, since activities already exist where you can take informative screenshots.
Thank you @Anthony_Humphries for the workaround suggestion.