December 25, 2023 Amy Shulke Ohuhu Marker, Ohuhu Swatch, Ohuhu Test Testing Ohuhu: YG080 Yellow Grey 08 for Lightfastness and Quality December 25, 2023 Amy Shulke Ohuhu Marker, Ohuhu Swatch, Ohuhu Test YG080 Red Grey 08Let’s take a closer look at this Ohuhu Marker and its ink characteristics.