White trousers are, quite frankly, merciless, and even more so with any pattern or appliqué on them. Here, however, they have managed to position the newspaper print in a way that is actually very rare despite of its simplicity, and also doesn't distort the legs' proportions all that much.
I heartily recommend you choose a pair of light-coloured shoes to go with white trousers, these ones being no exception. With black shoes, it's a matchstick. Found here.