click and drag anywhere to swipe the blade. use the sliders to adjust the colors, see guide below If you want to play the game, go here: https://scratch.mit.edu/projects/19894443/ This may be in fruit dash 2. Control Guide color-color shade- how bright or dark the color is range- how much the color changes. negative or positive makes the color change up or down the rainbow. internal means inside line of blade external means outside line. if you want one line, just set them both the same.
Once again thank you to @darkness3560 for your project which showed me how to make a blade. https://scratch.mit.edu/projects/11489772/