Thanks, @jeromedockes.
I am following the link to display the colour of mask image as plotting.cm.purple_green
display = plotting.plot_anat(‘xyz.nii.gz’)
display.add_overlay(‘mask.nii.gz’, cmap=plotting.cm.purple_green)
But the error shows ‘Undefined variable from import: purple_green’
Is that any way I can fix this or specify other colour here, such as a tuple cmap=(255,0,255).
Thanks.