One of the things I hate the most...hinging!! There's not much in the way of pics (see first post ), but before I did that, I painted the trailing edge in the flap area red so when the flaps were deployed it wouldn't look like...

On the original I painted the aileron section black to hide a not-so-good hinging job as I got it second-hand. I did consider doing these black as well, but decided against since the gap was minimal and the bare wood at the trailing edge was not that visible with proper hinging.