https://playground.babylonjs.com/#XCPP9Y#6796
Not sure if this is definitely a bug, but it’s not what I would’ve expected. If an element has a fixedRatio set, it looks like the ‘InPixels’ property for the derived dimension is incorrectly reported as being that of the parent container (I guess because it has defaulted to ‘100%’).
I will have a look at the GUI code myself to see if I can figure out what’s going on, just wanted to know if anyone has any insight on this, and maybe it’s what is expected?