So this is a simple way of doing a cool effect, for a transition. So, here are the scripts: repeat (amount of times, 10 is recommended): change [effect of your choice] by (10, to get to 100 everytime, just divide 100 by the amount of times you repeat by) change [same effect as before] by (the negative of the above, e.g. if you changed effect by 10, you now have to change effect by -10) The variable 'REPEAT' is there for you to change the number of times the repeat blocks repeat. And there you go! Just in case, clear the graphic effects at the end of the script.
Credit to me for coding and drawing. NOTE: You can also combine these effects to get crazy effects! Just remember to clear the effects by using the clear graphic effects block.