Dish soap and warm water work well for light grease; vinegar and water help break down tougher spots. For stubborn buildup, try a baking soda paste or a gentle commercial degreaser (tested first).
NijiGPen is a Blender add-on that brings new features to Grease Pencil for creating 2D graphic design and illustrations. It provides with the following functions: 2D algorithms for vector shapes and ...