Scratch will ask you to type in the text to be written and give the color. Pressing the spacebar whilst the program is running changes the background. Pressing the up arrow makes the text bolder; the down arrow makes it thinner. If it takes too long, you can always activate turbo mode (hold shift + click green flag)!
Credit to theLman for the original project. I added more colors and made it so that the pen in the cat's hand changes color depending on the color you pick.