How can I change the aspect ratio

so I’ve started using pencil 2D and i want to change how big the animation is in pixels,
i would want to change the animation size to 710px by 1080 px instead of the default

@sizz In Pencil2D there’s no specific concept of aspect ratio as seen in other software, so for most purposes a single pixel unit ratio is 1:1 (a.k.a square pixels; this is important for video editing)

To change the output size / resolution of the video you have to double click on the camera layer and change the size on a pop-up options dialog.

In Pencil2D the camera behaves separately from the canvas. And this is one of the most important concept to understand since you are supposed to draw on your canvas, and later on animate your camera to those drawings.