Properly replacing a colour in a simple bitmap

[Rik]

Hi Rik - no you are quite right of course for a case where the bitmap only includes two shades...contones even

Thanks. Steve.
I saw the image, and saw that there was an easy answer.

Is your link to John's post in your Post #5, the answer then?

[handrawn]

Rik - my personal preferred solution for more than two shades is to set photoshop as my bitmap editor in xara options

but if you want to do it in xara then the mehdi does work quite well - sometimes the 'eraser genuine' [free from mehdi site] works better than the classic

be interesting to see how useful the new eraser feature is in this respect in version 9 [the version 8 colour select/erase is not as good as photoshop IMO]