Thoughts would be a great place for hiding secret messages. It’s a drawing tool with a canvas that you can zoom into, infinitely.
So, if you were to draw a face, for example, you could then zoom into an eye and within that eye, draw another face. Within the eye on that face, you could zoom in and draw another face. And so on, potentially forever.
The idea, of course, is this can be a place to jot down all your thoughts. Draw or write and you never need to worry about keeping things ordered or within a fixed amount of space.
If you suddenly have a bit of inspiration in the middle of the night, switch to night mode and draw on a black canvas. Thoughts also keeps things pared back. There’s no messing around with different pen thicknesses and there is a small but sufficient colour palette to add just enough variety to your doodling.
Now all you need is some inspiration. That’s the fun part!