Walterina is more interesting than most of them have been lately. This is damning with faint praise, but it's as good as they get for a while, so let's try to enjoy it.
I'd previously guessed that most of the seedlings with ID numbers between 400 and 550 either had 'Krypton' or the NOID red-violet as pollen parents, but Walterina is probably not one of those, based on the dark purple spadix. I don't have any idea what recessive genes my founding varieties might contain, so in theory any of them could be the father here, but only two of the founders have dark purple spadices: 'Red Hot' and the NOID purple. Neither of those has a pink spathe, but 'Red Hot' has a red spathe, which is close, so my guess for parentage is 'Orange Hot' x 'Red Hot.'
The plant as a whole is kind of meh,
and Walterina has begun to show signs of scale lately, too. Since she's unusual, she'll get more chances to shake them than most seedlings do.
I'm not ruling out an up-potting, followed by treatment with imidacloprid: seedlings seem to be more scale-resistant when in larger pots, and although imidacloprid is useless for thrips, it does seem to be useful against scale. Haven't done it yet because I've been really busy and/or exhausted for the last few weeks, but eventually, maybe, if Walterina's still around.
So an interesting seedling, with unusual genes, and I would like to keep her, but I may wind up discarding her in the end anyway due to pest problems. We'll see how it goes.