Sprite sheets vs Zip files

[Inthegrave]

I'm not Dazz/Petie, but I feel like that would at least roughly double the space all submissions on the site would use

This is pretty much the main concern.

The proposal is definitely possible but it would be a massive undertaking to add the additional content to all of the sheets that are currently missing it. Additionally, I'd be willing to bed that a negligible number of visitors to the site actually utilize the resources for anything other than admiration/reference so the effort required to implement this and get it up to date would realistically be wasted as the benefit would be extremely small. And, as Mighty Jetters mentioned, there is indeed the issue that we would basically double the footprint of the site and while we currently have more than enough space, it certainly isn't infinite.

Am I allowed to add a alternative to different sheets? I would like to do it in my free time and I don't expect anyone to help me with it, 
but if the issue of space is a concern then I won't.

Just let me know if it is alright or not.