Minimalist Baseball Signal Graphic

1080x1080 square format, #D3D3D3 background, vector format, solid colors only, clean novelty baseball graphic using a simplified umpire scoreboard aesthetic, three vertically stacked circular signal indicators labeled B, S, O in white varsity lettering, green top light, yellow middle light, red bottom light, circles constructed from small LED-style dots, centered composition with wide negative space, oversized stacked typography underneath reading “BACK PAIN” “SLOWLY SLIDING” “OUT OF BREATH,” thick black divider rules, classic American athletic apparel styling, highly legible screen-print design, no characters, no gradients, all elements fully inside frame