Purple abstraction with elements of lines and stripesPurple abstraction with elements of lines and stripes
The slide rule, pencil and magnifying glass are on the notebookThe slide rule, pencil and magnifying glass are on the notebook
Abstraction of triangles and angles in white red blue and purpleAbstraction of triangles and angles in white red blue and purple
The intersection of different lines of black gray and orange colorsThe intersection of different lines of black gray and orange colors