I'm happy you asked! I've been experimenting with writing prompts for AI art, and one such prompt I tried was 'Symbol of Amaranth' (Amaranth is the Capital of Madeline's realm in the newly written lore), which is the green sigil that you speak of. I then edited it onto a silver badge as I thought it would make a nice profile picture. The sigil itself seems to resemble some trees/plants in the pupil of an eye, surrounded by a floral ring. Usually I'm not a big fan of the AI art I generate as it doesn't always turn out well, but I think this one looks nice.
The new post does look promising, it would certainly be nice to have new random encounters aside from the usual lost champions that we get. Having lesser demoness encounters would certainly add some much needed variety to the combat, and hopefully we also get new scenes to go with them.