Anime Girl with Sword — Yellow, Playful, Warning Sign

1920 × 1080

Biohazard Symbol — Green, Warning, Vector Art

1600 × 1200

zombie warning sign

800 × 600

Radioactive Warning Sign — Black, Ominous

2560 × 1600

Radioactive Warning Symbol — Yellow, Illustration

1600 × 900

Aperture Science warning sign

1392 × 1536

Radioactive Warning Symbol — Yellow, Illustration, Yellow Background

3750 × 3000

Warning Sign with People

1920 × 1056

Acid Warning Sign

1350 × 845

Warning Sign on Glass

1280 × 800

yellow hazard stripes on dark background

1024 × 1024

Yellow Warning Sign — Black

1920 × 1080