Note that you can change the default color theme (I have no idea why Panics default is light text on dark). This app is not as intuitive as youd expect from such a great company - I had to consult the "getting started" just to understand some basic things including changing settings for the editor (which it seems you can only do from the menu of an open file? why?) - and it doesnt seem to confirm on successful upload of the active file? But overall, this app is very powerful and it lets you unlock via your choice of password or Touch ID.
bluetoucan about Code Editor by Panic