Tweaking Grasshopper Display Properties?

Grasshopper objects look very different in different display modes but I don’t understand why because no matter what flips I switch, nothing seems to change GH geometry. For instance, I like to use shaded most of the time (shown in middle here) but I don’t like the vertical curve, it’s distracting if I’m trying to tell a client to look at the horizonal curve, in this example. Rendered removes that but as no definition at all and looks flat. I really want to get in somewhere and mess around with settings but so far as I can guess these are preset options based off of default display modes?