My wish list after using this app for a while
It would be great if we can adjust the fade level of the imported base image. And also more adjustable pen sizes and color would make this app 100% perfect.
Thanks for the feedback! We're definitely looking into these suggestions. One of the things about our application that makes it different from other iPad drawing apps, is the behavior of the pens. Once you choose a pen of a certain size and color, all of the lines you draw with that pen remain the same size and color at every scale. You can presently resize the line weights of all lines in the document but not each of the pens individually.
We are looking at a few ways we can preserve this behavior but still give you the flexibility you're looking for. For example, we could let you have a "jar" of pens. If you don't like the pens we have chosen, you can add new ones. Each new pen might have its own shape and color, but like the other pens, the lines you draw with your own pens are always the same color and size throughout the document at any scale.
In terms of adjusting the imported base image fade level, that one is pretty easy. We're looking at slipping that in to a future update.