I first linked to Louis D'hauwe's pixel art editor for iOS, Pixure, in March, when he introduced PanelKit in the iPad version of the app. If you've never played around with Pixure and PanelKit, imagine the ability to grab iPad popovers or sidebar panels and detach them so they're floating onscreen like tool palettes would on macOS. I was skeptical of this idea initially – I feared it would overcomplicate the iPad's UI – but it works surprisingly well on the 12.9-inch iPad Pro. I know that after using PanelKit months ago, I tried a few times to grab popovers in iPad apps like Omni's, realizing that they didn't support PanelKit.
D'hauwe is back today with Pixure 3.0, another excellent update that, among various enhancements, brings a version browser (a feature more apps should offer on iOS), drag and drop, and advanced export options. With today's release, Pixure also includes PanelKit 2.0, a major update of the framework that now supports pinning multiple panels to the side of the screen as well as resizing them. Plus, your custom panel configuration is now saved across multiple app launches, so once you set up your workspace in Pixure, the app always remembers it.
Even if you're not interested in editing pixel art graphics, I recommend checking out Pixure 3.0 just to play around with PanelKit 2.0. Support for multiple panels on the side is particularly impressive – try, for instance, to resize and stack the Color Picker and Layers panels on top of each other. It's fun and intuitive, and I bet you're going to wish more pro iPad apps offered this kind of flexible, customizable UI. You can find Pixure 3.0 on the App Store and read more about PanelKit 2.0 here.