decorative frame of triangles.

abstraction angle background base black blue bright brown color colored cover decorative frame framework from geometric geometry green group illustration mesh mosaic ndecorative pattern patternn patterns perimeter pixels primitive repetition retro scheme seamless simple small squares squaresabstrakt style symmetry tile triangeles triangle triangles trianglesabstrakt trianglesabstraktn trianglesn trianglesnseamless trianglesseamless wallpaper yellow