DraftSight - Latest build installed (V1R2) - Export png file with black background

Hello,

I have followed some articles and the knowledgebase to change the model background and reference guide from black to white and the display is correct within DS.
However everytime I try to export the diagrams to png/jpg.. the black background is exported instead of the white as expected.

Could you please help me to define why the export is different than the display?

Thanks.
Regards.