OCC Foxfire Loose Colour Concentrate ($12.00 for 0.088 oz. / 2.5 grams) is described as a “silvery lime-green shimmer.” It’s a shimmery medium green with yellow undertones. MAC Fresh Flare is darker, less shimmery. Wet ‘n’ Wild Bright Idea is less yellow-toned. MAC Wondergrass is more vibrant and darker.