I love when the lines breathe, so I keep the background neutral, maybe a light misty gray, and let the wires glow with a soft gradient—just enough color to guide the eye but not overwhelm. I pick cool, muted tones that don’t scream, and add subtle shadows to give depth without drama. Then I step back, zoom out, and make sure every component feels balanced, like a quiet room after a long day. It keeps the schematic functional yet soothing.