Some better pictures of my version of the Third Doctor's outfit from "The Dinosaur Invasion." I added the darker blue edging on the ruffles on the shirt front and cuffs, using fabric paint.
I used scotch tape to keep my line mostly straight - just like using tape when you paint the house or a model. Except the paint soaked into the fabric here and there anyway. Luckily most of those crooked bits were hidden when I gathered the ruffles.
The trousers have a satin band along the side seam, and functional pockets.
More pictures and info on my website's Doctor Who: Third Doctor (Jon Pertwee) page.