chalk wiped out on a blue chalkboard background.

blue azure line purple circle sky floor wave textile flooring aqua pattern text font freezing violet ice art drawing turquoise chalk wiped chalkboard background texture billboard blackboard chalk chalkboard classroom education grunge school textured write blank communication copy empty backdrop blue board design texture background wiped advertising grungy learning scratch teach drawing wallpaper element space white black old wall back class draw dust educate graphic learn lesson message messy panel photograph student vignette copyspace dirty frame