Error "unknown named color"

[Nicholas_Borg]

I had a problem with color from the Javascript end, and I was fortunate to receive some very helpful advice from another user. Here’s the link to the comment, see if that works.

Changing line colour with mouseover [Javascript]

Ah – I’ve spotted the issue. I had a problem with colours which I’ve solved by defining them at the start of the experiment. e.g. Begin Experiment Python - red=[1,-1,-1] Javascript - red = new util.Color([1, -1, -1]); Then use red without quotes in your code. This is in my crib sheet. Best wishes, Wakefield