Creating a custom theme and use sencha watch on it

Hi.

I'm trying to build a custom theme for my app.

I've created a folder called myThemeName under the resources folder.

Inside of it I've created four folders:

I've put my sass file into the sass folder along with its config.rb

Now, I would like to make the sencha watch command to "watch" for the changes of my sass file and build the css file, because it only keeps watching the app.sass file into the resources/sass folder.

I've included the myThemeName/css folder in my app.json file in order to use it as a theme.

How can I tell to sencha watch to also watch my myThemeName/sass folder? Is this possible?

Creating a custom theme and use sencha watch on it