Comment 2 for bug 849046

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Alex Valavanis (valavanisalex) wrote :

I can reproduce this using the following procedure:

1. Extensions->Colour->Custom...

2. Enter "rr" in the "Red Function:" dialog and press "Apply". (Also occurs if "Live Preview" is enabled).

This occurs because the "rr" symbol does not exist (i.e. it's a typo in the entry field). The extension script should perform more thorough error checking on the input field before trying to process the function, and then display a user-friendly error message rather than just throwing an exception.