Galeria Acrylic Mediums Winsor & Newton Galeria Mediums were developed to meet the evolving expressive needs of artists. Painting is often as much about texture and feel as it is about the look of the image. Galeria mediums help the artist explore the tactile as well as the visual properties of acrylics. The product range includes four categories: Textures, Mediums, Primers, and Varnishes. Compatible with all Winsor & Newton acrylic colors, they can also be combined with each other to provide infinite possibilities for the artist. Choose from: Matte, Gloss, Structure and Heavy Structure Gel Mediums, Acrylic Fluid and Flow Improver, Modelling Paste and Heavy Carvable Mediums. Texture Mediums such as Glass Beads, Black Lava, Mineral Texture, and more!