Draws 15 sets of lines. Each set of lines is drawn inside of a custom block that has the no-screen-refresh flag set and draws 4000 lines. Each line is 10 steps long. Scratch 3.0 link: http://beta.scratch.mit.edu/#260067685
System Info: CPU: Intel(R) Pentium(R) CPU G620 @ 2.60GHz with 8GB Ram OS:Microsoft Windows 7 Home Premium 6.1.7601 Service Pack 1 Build 7601 Browser: Firefox 63.0.1 Flash: 30.0.0.154 Scratch 2.0: 7.3 seconds Scratch 3.0 7.0 seconds
