Graphics, Illustration and Visual Communication Design Firefly Songling Volunteer Branding by Suzhou SoFeng Design Co.,Ltd. The logo design of Firefly Songling Volunteer combines the regional characteristics of Songling Sub-district, humanistic spirit, unique ecological environment, and the representative image of the excellent character of the volunteer team-the appearance of fireflies, which is reflected in the dedicated volunteers like fireflies. Thanks to the hard work, the livability of Songling Street is harmonious.