I know development for AppGameKit classic has stopped, but I imagine this is the same feature for Stuido right now so maybe for that.
For particles, can an option be added to allow only Y axis orientation the camera? If your doing, for example, rain the most efficient way is to add particle sheets, but at the moment in AppGameKit particles are orientated at the camera on all access which means if you look up the rain looks terrible. If a tweaked shader would allow orientation to just the Y access so they stay vertical but point at the camera this would be great.
Or, can we allocate or own shaders to particles? This would also let us code around the transparency / depth issue as we need to. With either an example of the shader, or the abilty to catch it in a string similarly to objects now.
Fingers crossed.
