@jb4x Thanks for clearing up the ‘delay()’ issue. What do you think about the PDF export - https://processing.org/reference/libraries/pdf/index.html? There doesn’t seem to be a way to adjust the color settings in the code.
I don’t know… Maybe the processing environment is using a different RGB space than the PDF standard 
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Maybe when I import the PDF into illustrator or Photoshop I’ll be able to adjust the settings… I’ll give it a go. It might just be the program I’m opening the PDF with.
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@tomvons How are you exporting to PDF? Are you using Processing PDF Library?
Maybe processing is using the sRB space and PDF viewer the adobeRGB space?
The difference relly on the definition of the red, green and blue. You can check this link for more details:
The thing is that I don’t know if those spaces are application dependant?
I know that on photoshop you can choose it though.
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@jb4x this could explain the issue.