To rotate a block, put the mouse on it and press r. Available colors: black, gray, white, red/brown, yellow, green, light blue, dark blue. If you make a picture, make a screenshot of it and share it in the comments!
Arne for the color palette: https://pixelation.org/index.php?topic=8408.msg94920#msg94920 Also see the original version: https://scratch.mit.edu/projects/226893795/ Also see the 16 color version: https://scratch.mit.edu/projects/227043233/