Ability to edit pictures with the app

I know on a computer, you can add or edit a card by clicking the "pencil" icon. I do not see this feature in the app. Being able to add a photo in the app would save time and make it easier to contribute to the community. Right now, I'm taking a picture with my phone, sending it to mt PC, and then editing from there. This seems like it or more complicated than it needs to be. Given that the app already scans cards, I think the option to scan a card and add its image to an existing listing shouldn't be too difficult to implement.