SwiftUI

SwiftUI is an innovative, exceptionally simple way to build user interfaces across all Apple platforms with the power of Swift. Build user interfaces for any Apple device using just one set of tools and APIs. With a declarative Swift syntax that’s easy to read and natural to write, SwiftUI works seamlessly with new Xcode design tools to keep your code and design perfectly in sync.

Describe the solution you'd like

As you can see from the image, being able to have more than one shell in a project would be great.

Describe alternatives you've considered

Here are some examples of how it handles Webstorm:

<img width="414" alt="Schermata 2022-04-02 alle 09 40 31" src="https://user-images.githubusercontent.com/20476002/161372745-e95648a0-46a2-40e2-9975-1fd23a945

Gifski requires at least 2 frames in the resulting GIF, but users might accidentally trim or choose low enough FPS for the resulting GIF to contain less than 2 frames. We should show a warning in the editor's view in that case.

Right now, we just show an error when the conversion starts:

<img width="472" alt="Screen Shot 2020-10-24 at 16 53 31" src="https://user-images.githubusercontent.com/