Isn't it curious that Unity, Unreal and Godot all use very similar UI (and underlying representation) for how a UI element is anchored to its parent container?
This is based on the work I did for Unity's UI system that shipped in Unity 4.6 in 2015. It was later copied by Unreal and Godot - in Unreal's case, even before Unity 4.6 went out of beta!
No hard feelings - I'm proud to have been behind this "industry standard" :)
#gamedev #ui #ux