This is a simple project that has a sprite draw... 1) A deep orange circle. 2) A pale orange circle (less saturated). 3) A cyan circle (different color). 4) A teal circle (different brightness). 5) A stamp of itself. 6) A transparent line, which starts (different transparency) with a totally transparent circle, then moves (less transparency) a vertical line. This project exists to test the behavior not just of the respective "set pen (color, saturation, brightness, transparency) to" and "change pen (...) by" blocks, but of their dropdown input, which is coded a little bit weird inside of Scratch! (It's a shadow block, but unlike most shadow blocks - which are generally quite common - it uses a different name for *its* field as the input on the parent block which contains *it*. Its field is "colorParam", blocks' inputs are "COLOR_PARAM".)
