Why is it that while the vast majority of mathematical textbooks are printed on white paper, a select few are printed on that tan, sand-colored paper that sometimes shows up?
I find the latter very visually appealing, so if it is acceptable in the mathematical community, why don't publishers/authors use this soothing background more, instead of the sharp, distracting, and basically ugly (that's maybe just me?) white?
Would it be acceptable to hand in assignments in this colour (ignoring the costs of printing!), and, since I expect the answer to be no, why not? Is there a 'standard' sand-like colour used in mathematical work, (and if so, what is its precise description since I'd like to use it), or do authors/publishers just pick any one they like?
Sorry if this is a weird question.