Neutral Effect
Steampunker
Afaik Ichor is blood of the gods; not really flame-like. I think it's used in everything fire-related in Terraria just because if it wouldn't, then Crimson lovers won't have any counterpart to Corruption's sursd flame-based blocks and such, so devs made Ichor just crimson flame. IMO their uses shall differ - a lot, due to completely different nature of these materials. but what do I knowTerraria's Ichor is actually very flame-like (due to its being a counterpart of Cursed Flames and needing to be used in the same kinds of items). How else would Ichor Torches, Campfires, and Living Ichor Fire Blocks make any sense?
Other than that, Cursed Flames is just as deserving of a Grenade as Ichor is.