Bspwm is a solid-style Icon from Simple Icons set.

The Bspwm icon shows a black circle divided by white lines, with “BSP” in the upper sections and “W” and “M” below. Drawn in the solid style on a 24px grid for crisp, compact display; use it for window-manager branding, Linux desktop tools, configuration pages, and developer documentation. It belongs to Simple Icons free set in the Brand Logos family.