That's what I came here to discover as well. Sigh. Without discovering it. I have noticed in the chain that quantitative or either/or (binary choice) adjectives like Large/small, new/old, and perhaps different/same sometimes appear in front of and sometimes in back of the noun. Perhaps it is the importance of the adjective to the noun it modifies. I have read that a sombrero nuevo means a new hat as a different hat from the closet while a nuevo sombrero means a new hat to me from the store. The same with grande: un gran hombre is a great as famous, accomplished etc., while un hombre grande means a large (in size) man.
Gholets, I'm surprised you don't have more upvotes! Thanks for sharing your observations. They bring me a few notches closer to understanding these conversational nuances. I wonder if there is a formal differentiation or something we'll just have to absorb with practice. Hopefully others will weigh in, too.
Is anyone else having a problem with the "You are correct" banner blocking the "continue" button at the bottom of the screen on the Android app so that you have to slide the banner up to get to the button? The banner always used to appear in the same spot in the middle of the screen, but more and more often it's showing up somewhere near the bottom.