Schwarze Linie

A simple black line depicting a mountain range on a white background
@r

rin

Gray stone surface with a black line and a circular hole
あさ

あさ

Image showing blue water surface with bubbles and a black line underwater along with a round blue object
dsuke999

dsuke999

Black keyboard with red line and control buttons
山木和也

山木和也

A black music note with a series of black hearts arranged in a line
@nonko

nonkosan777