Error: win is not defined

[wakecarter]

Personally, I would use a rectangle for this.

Changing background colors throughout and ONLINE study

Hi Becca, Thanks for the quick reply. I tried adding the code component. It indeed changes the background color, but unfortunately it only changes the color once I quite the fullscreen mode. Otherwise the background color remains unchanged. However, I found a different solution with the polygons now. I added a polygone with a thick line width (e.g. 50) and its size specified as norm (2,2). This draws a nice frame around the screen and its color can be changed and updated by specifying the line…

There is a neater solution but I’m not sure it works online.