Krita is an image editing application, but before you dismiss this as just another GIMP knockoff, it isn’t. While it has all the basic tools you’d expect, it also comes with several features that make image manipulation and photo editing easier such as multiple masks per layer, color history, clone layers and more.
One of the most impressive features of Krita is you can use multiple masks per layer, something you cannot do with other photo editing applications. And with its layer inherit alpha feature it’s like having an advanced clipping options built in.
Krita also gives you a color wheel and color history so even if you paint yellow, red or green in specific values, the program will remember it. The importance of such a tool cannot be overestimated: if you’ve painting specific values and keep switching colors, it’s easy to forget the last one you use, but with a color history you can get back to it.
Another thing you’ll like about Krita is that the tools can be accessed by right clicking the canvas, so you don’t have to look for the tool on the menu. Also, the filter and transform masks are designed inn such a way that you can delete and adjust them without affecting the source layer, great when you’re working with complex projects.
If you’ve never used Krita before, it might take a while to get used to, but you’ll get used to it eventually and it’s worth studying as it works great.