100Floors level 91

STEP 1

Startup screen.

STEP 2

Take the brush from the lower right corner.

STEP 3

Use the brush to clean the area at lower right corner of the wall.

STEP 4

Click the number behind the smear. The squares on the door will become colored.

STEP 5

Then, make the door colors as follows -
Top row: Orange, light blue, blue
Bottom row: Green, pink, yellow

STEP 6

Escaped.