Aperture Laboratories warning signs

1440 × 900

icon set with safety symbols

1440 × 900

game control icons on cracked screen

1366 × 768

sad figure with warning sign

1920 × 1200

Gender icon rating system

1280 × 800

3D emoji character collection

1280 × 800

Emotion icons collection

1024 × 768

stop sign hammer clock

1728 × 1080

icon grid with shattered glass

1920 × 1080

Five elemental symbols

1024 × 1024

Four elemental symbols

2560 × 1600

Radioactive Warning Symbol — Black, Dramatic

1600 × 1000