Pondering Adding a Front Apron Pocket: Contemporary Canvas

[Bugbear]

The Wizard explained a little of how he makes under apron pockets.
I had been planning to put the pocket more to the side of the kilt on the under apron, but he centers them, and also puts an angle in the sides to make it easy to get your hand in and out.

I'm thinking I might need to change the plan a little from just sewing a patch pocket from a pair of trousers.
* I'm thinking I might make a couple of different model pockets to pin on the under apron, and see how they work. That usually helps.