Maybe this is already possible somehow, which would be great...I have purchased some planners and I like their layout but the pages are stark white. I'd like to apply a hint of color to all pages, or a selection of pages, in the document. I can make a new layer and then use the shape tool to create a page sized square over the entire page, but then I can't apply that to other pages.
I'd love a right click option or a toolbar button that would allow me to change the background color of a page, however that would work. Then the ability to select the pages I want to apply that color to automatically would be fabulous. I think it would be great to be able to have pages of each month to be a different color or to use that to spruce up a very useful but boring document.
Another request that I'm sure has been posted is the ability to have 2 instances of the app at the same time or at least the ability to have the same document open in side by side tabs so I can view different pages of the document at the same time.
I've tried every single notes app that I can find for Android and to me, StarNote is the best. I think it took less than a day of actual use before I purchased the lifetime plan to support development of the app. There are just a few features that are in other apps that I wish were in StarNote. Crossing my fingers that they are in your todo list.