Usability on small screens review

[KatieWoe]

Per @kathy-phet's request in phetsims/qa#295 I am making issues in each published sim repo detailing the pointer areas and usability of sims on phone sized screens. Done on an iPhone 7 iOS 12 device.

Potential Difficulties Noticed:

• No needed changes noticed
• books don't have pointer areas

Screenshots:

[arouinfar]

I think the lack of visible pointer areas means that click/touch areas are the exact boundaries of the book. Is that correct @zepumph? If not, then it would be nice to see the boundaries in showPointerAreas. Otherwise, I think this is safe to close.

[zepumph]

Yes that is correct! It is confusing, and devs often use the wrong terminology, but basically pointer areas are a supplementary way to add to the region that is clickable/touchable to interact with a Node. The whole area that you can interact with a given Node for is called a "hit area"

it would be nice to see the boundaries in showPointerAreas

Yes agreed that would be nice. Right now we don't have support for a ?showHitAreas query parameter, but I think the issue to track that will be phetsims/sun#426