Hee, no worries.

Honestly, every single guide and tutorial I have ever read started like "I have no idea if this makes sense/is interesting/is long enough/isn't just rambling". :D

Basically, everything you just said in your comment up there, along with a few example icons, would already make a good guide.

I do have an idea for which icon to write about though (but it's a textless one), because I've wanted to go on about that one, ha.

Sure, go ahead! If you have fun writing about it, do it! Consider yourself asked. :D