I know projects like this already exist, but I felt like making this. Click on each sprite and the backdrop individually to toggle colour/greyscale mode, or press Space to toggle for everything. I honestly prefer greyscale mode All of these are demented anyway, especially Gobo (reminds me of an oyster) and with the possible exception of the Scratch cat. I never said it was a particularly enthralling project V1: https://scratch.mit.edu/projects/554804990 V2: https://scratch.mit.edu/projects/555697414/