Also, here are the phone landscape and tablet landscape designs below. We have sought to make sure extensions developed for mobile “just work” or you can design and build once and feel confident in them working across devices and their orientations with minimal fuss (so long as they are responsive & don’t use fixed widths)…
![Phone (iOS) - Landscape: Playback [Extensions] - Light Theme](https://d2spem0quai2ol.cloudfront.net/original/2X/c/c98256b1c1ffe5f040a60384deb181cf403c56ac.png)
As you can see, for landscape phone, when invoked the extension area expands slightly to accommodate the extension and tab construct. (Static images don’t give you a sense of this nice fluid animation at play here).
![Tablet (iOS) - Landscape: Playback [Extensions] - Light Theme](https://d2spem0quai2ol.cloudfront.net/original/2X/3/363958fab7ea57b799c4eadb0c3045a0a6dd5879.png)
On tablet, it works similarly. (Keeping some chat visible is still TBD)
One of the goals for not only extensions developers but users is having a familiar UI across devices. Learn how to use and develop once!