There doesn't seem to be a way of referencing anything but the default sprite on a sprite sheet (in this case, a texture imported with Sprite Mode Multiple) using this system. Loading via LoadAsset<Object>() results in a reference to the texture. Loading via LoadAsset<Sprite>() results in a direct reference to the first sprite, it seems. Either way, I can't get to the data about the sprites in the texture. Additionally, there's no way to add addresses for each individual sprite packed into a sheet, so I can't do it that way. Am I missing something here?