Please help if any one knows what this is. Lost track of what variety this is, but i think its an heirloom. Its almost a month old now and been fine until about 2 days ago, noticed some bright purple spots on top of one of the first true leaves. Now it is starting to show thru the bottom of the leaf, and the new growth is starting to curl under slightly. Have been searching online thru various pics and forums to no avail, i hope it will snap out of it but need some help if someone is familiar with or knows where to point me to. thanks..

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