By the way, I relaunch the original question: is there any chance to get media files named with “small”, “medium”, “large” attributes instead of the actual sizes?
This could be very helpful when needing to get, for example, the “small” version of the image without need to know the actual size.
How people manage their media files and sizes is just up to them: calling the file by the size class instead of the actual size of more than a simple good rule of portability.