a background of squiggly random colourul lines.

marker doodle vector sketch texture pen hand drawn scribble grunge squiggle color scratch rough background set abstract ink element scrawl colorful graffiti graphic thin strikethrough bright art squiggly drawing wavy mess childish pattern curly spiral decoration curvy felt ballpoint artistic signature paper decorative creative lines random colourul lots messy gel pens dark red yon yellow blue green