Thanks so much for your help everyone, much appreciated. One more tool in the Inkscape arsenal.

Hi guys, thanks for the replies.

Yes, I tried the colorize but on mine it's only altering the colour of the image outline, as attached. How might I change the fill, too?

Thanks in advance.

As the subject suggests. Having no luck with Fill/Stroke or with Extensions>Color>Change Color

Thanks in advance for your help.