Even Apple didn't even go after others when rounded corners, glassy/glossy, gradient buttons was the trend. (Yes, Apple didn't invent those, just as LV didn't invent flat UI or the art work - which btw, is just a flat color. Glad Pantone isn't going around with LV's mentality.)
Apple does go after other designs that are similar to theirs, but (big BUT), they don't use DMCA unless there was an actual copy of their artwork/software. They file an injunction with a judge to stop sales of the product and/or sue them in civil court.
Even Apple didn't even go after others when rounded corners, glassy/glossy, gradient buttons was the trend. (Yes, Apple didn't invent those, just as LV didn't invent flat UI or the art work - which btw, is just a flat color. Glad Pantone isn't going around with LV's mentality.)
Just speechless.