Also, the deeper you look, the more redshifted it is. So eventually, Webb is capable of seeing full visible color spectrum again, if it looks far enough back in time. :)

(Additionally, for the most deepest-field objects, they're actually significantly larger in terms of angular extent than nearer objects of the same physical size due to the fact that the ancient universe was smaller: https://www.forbes.com/sites/startswithabang/2019/12/07/ask-...)