.GRADIENTLIBRARY File Extension
What is a GRADIENTLIBRARY file?
Library of gradients created and used by Corel Painter, a program used to create digital artwork; includes Stainless Steel, Light Streak, Oxidation, and Jungle Neon gradients.
The gradient library can be created, imported, and exported through Painter. You can apply a gradient to your brush strokes, which can be used to draw on the canvas. It is similar to other Painter media such as Weaves, Looks, and Patterns.
You can access a library of gradients through Painter's Media Library Panel. Select Window → Media Library Panels → Gradients and the Media Library panel will appear with tabs for Pattern, Gradient, Nozzle, Look, and Weave libraries. Here you can create, import, or export media libraries.