hi.
i saw your deletion of Template:Tstest/Testts2.css. the summary said "Test, please use the sandbox"
i do not necessarily object the deletion - tbh, can't recall what or why. the fact it appeared in my watchlist is a strong indicator i created this in the first place, but i was not really aware of its existence, and if i was indeed the creator, i totally forgot about it.
however, the summary is wrong and not helpful: this was a "templatestyle" page, and such pages are special, in that the templatestyles extension will only take pages which are "subpages" (i.e., contain slash as part of the name) in the Template namespace.
so the deletion might have been a good thing, but the rationale was completely wrong - it's not possible to use sandbox for testing templatestyles.
if you know differently, please teach me - i'll be more than happy to learn how to test templaktestyles other than creating a "subpage" to a template.
peace.