I have flat cabinets with rounded edges. I plan to DIY and make them into white shaker style with new hardware and crown molding on top. I am also adding stone backsplash and polishing my Corian. Do I need to square my sides with wood filler or would it still look good with rounded edges? ( simpler , just have to add the 2” x 1/4” flat trim to make the shaker style). Following are 2 pics of my cabinets followed by something similar to what I’m going for. Old ugly flat cabinet doors a…