The term "non-white snowdrops" is an actual term used by some Galanthophiles. Originally it may have been applied to snowdrops that have yellowish peduncles suspending the white flowers rather than green ones, and can include yellowish petal markings rather than green. Even though the flowers are still essentially white, those with these yellowish features are referred to as "yellow snowdrops". To the uninitiated or budding-galathophile, this term could be confusing, thus the explanation. Many of these are charming and would make worthwhile additions to the garden, if only they were... 1) available & 2) affordable.
Here's one of the better ones named G. nivalis 'Golden Boy'.
In my opinion the term "non-white snowdrops" is a largely a misnomer, used to define so-called "color-breaks" in the genus, purportedly of apricot, orange and pink snowdrops. I have not seen any evidence to date that there exist snowdrops that can be vaguely called apricot, orange, or pink. I'm happy to be proven wrong. I would however include some of the lovely nearly-all-green Galanthus forms in the "non-white" category, although the term is not used in that context.
To get an idea of green ones, here's a delightful one called 'Green Tear':
In the links below a new cultivar named Galanthus elwesii 'Jonathan' is described as a non-white "apricot" snowdrop. I joke that you might need a pair of amber "galanthospecs" to see the apricot color; I don't have a pair so all that I see is a white snowdrop with green markings, and the inner green markings "showing through" from the outside causing some faint dull yellowish green cast. But apricot?
Scroll down to Galanthus elwesii 'Jonathan' in this link:
Photos of Galanthus elwesii 'Jonathan':
...if anyone sees apricot snowdrops in this link, you must be using updated "galanthospecs" :D:
PBS discussion on the "non-white" snowdrops:
PBS discussion - MMcD response 1 (some links inside), March 2012:
PBS discussion - MMcD response 2 (more links inside), March 2012:
PBS discussion forum response, defending apricot and orange snowdrops:
In that discussion, there is also mention of Galanthus reginae-olgae 'Pink Panther'. So far this remains a phantom panther because scanning the internet yields zero tangible evidence that a certifiable pink snowdrop exists (0 photos). In the 27,887 and counting Galanthus messages on SRGC Forum I found one mention of Galanthus 'Pink Panther', referring to seeing this new pink Galanthus in a nursery list for £150. I would think something as earth shattering as the first pink snowdrop would be all the rage, with photos and information abounding. It's been a year since I requested seeing a photo of this, I still doubt the existence of a pink snowdrop until I can see it with my own eyes. Anyone have a photo or a photo link?