Proof Colors 0 & 100 are different! You might think Scratch 3.0 has 100 different Colors? Well, you would be wrong, it has 101 different Colors! If it only had 100, the 10 lines drawn by the Scratch Pen in this project, would be identical, but they're NOT! ACTUALLY - seems it's 101 that's the problem Color, as in Scratch has fudged things to make 0 and 100 identical colours, but 101 is also Red. To more clearly demonstrate this I have changed the project so you can test the assumption that Scratch has 100 colours against my conclusion that Scratch actually has 101 different colours!
Created by @gregatku for use in Coding Classes for Kids Unlimited, for whom I work as a Coding teacher. NOTE: If trying to match Pen Color & Color Effect, you need to know this, since a change of 1 in Color Effect is a change of 101/200 in Pen Color (not 0.5). Color Effect is from 2.0 where colors 0 & 200 were identical (as were colors 1 and 201). NOTE: @papipupepappa has proved to me that while 100 is actually the same Color as 0, the problem starts with Color numbers > 100, as the updated version of the project clearly demonstrates.