Recreating usage of container shapes like triangles on the GP site

Hi All

I’m trying to use the container shapes feature in a similar way to the Generatepress site with the coloured triangles. However by default the custom uploaded shapes span 100% width by default.

So I’m curious how to achieve the traingle shape effect of GP as I want to have some similar shapes which don’t span the full-width just as subtle details/elements like GP.

The main difference between my site and GP is that the preserveAspectRatio attribute is removed on the GP triangle shapes but when I upload my custom shape to the asset library this attribute gets added automatically and I can’t edit it to remove.

I would be grateful if anyone knows how this was achieved on the GP site to remove the attribute and not have the shape span full width by default?

Thanks