Way too generalized... Modifications that pay homage to prior stock generations are not exactly rice to me. Like side scoops and louvers. Unnecessarily dramatized accessories like a 10 inch raised wing(that has no benefit), huge logos of companies that dont sponsor you, ground effect moldings that are overly ornate, wheels that shout louder than the car does, and paint schemes that confuse the eyes will do it for me.
Modding without performance gain can be very tastefull. A vehicle looks will always play a part in ownership satisfaction. No reason to try to pigeon hole everything into "rice".
For example, hood pins that are functional are not rice, no matter what (unless hugely oversized of course), hood pins that are not functional (stick ons) are rice to me, BUT in the event the car in question is being styled to a previous version that commonly did have hood pins; not rice within reason.