How to Remove Detect Magic Area of Effect

Edit: Solved! thank you all - i had to click on the ruler icon!

[PF2e] I'm brand new to foundry and Pathfinder 2e, and i was experimenting casting spells by the pre-made Beginner box wizard actor. I cast detect magic,and it created a 30 ft. green aura. And now i can't delete it. I don't see a Tile for the spell. Please help :)