If he is a dark eyed clear, his eyes will be plum coloured.
By what I can see, I'd say he could possibly be a double factor spangle masking recessive pied, if he has no signs of iris rings. I have two like him, a hen who is a pale yellow all over with no iris rings, and her father who is a deep yellow with no iris rings. I had no idea why until a future clutch from the same parents produced a recessive pied.
You know you might have too many budgies when you're not sure if you've remembered them all!
Charlie - Cinny - Dante - Gidget - Jimmette - JJ - Jules - Mo - Ollie - Peanut - Penny - Pie - PJ - Pockie - Sally - Simon - Snowy - Song - Sora - Spang - Tommy