A very slight coloring with stripes on an otherwise nearly bright yellow chick may be a silver plus cinammon aka ivory. They are near impossible to tell in pics and will drive you nuts trying to figure out exactly what they are the first time you see them. They look so light but yet they aren't pure yellow of a white or the solid "dirty yellow" or grey of a silver and they may have very faint stripes which a silver will not have. Now that you mention it and I look closer the one right in the middle in the first pic of them all and the last pic with all of them really does look like an ivory or even slate and ivory (blue face, cinnamon, silver genes). I did produce some with red breast, blue face, cinnamon, and silver genes that were interesting. The breasts on the males were rose colored, the body a softened version of the slate grey which is often called dove grey in other animals, and overlayed with cinnamon along the edges of each feather. As chicks stripes were obvious despite the chicks being quite light and some kept a slight bit of striping as they got their adult feathers. You'll have to wait to see how it feathers to really tell what genes it's carrying but if it looks like a silver only faintly striped or ticked with cinnamon odds are it's an ivory.
The lightest yellow one does look white to me. My silvers never looked that bright but it's possible.
I've seen some DF that were more chocolate brown and the stripes may show through on a red breasted blue face that is very light. I would still be quite confident to say the one in the first pic of an individual chick is a DF.