Not possible to change the background color of a new page about evoluspencil HOT 3 OPEN

To change the background color of a page, (1) right-click on the tab for the 
document in question just above the main work area; (2) click Properties; (3) 
select "Background Color" in the Background pulldown menu; (4) click the white 
square that appears next to the pulldown menu; (5) select your background color

Hello,
I have followed the above instructions for white background and the background 
colour does not save. When the document is re-opened, the background has 
reverted to transparent.

I have the stand-alone Evolus Pencil, and it also has the same problem. 

Workaround: Create a 'New Page' and set the background on that. This one will 
save and be okay when you open the file again. But do not change the name or 
background on the page after it's been created. If you do, then it will revert 
to white background again. I'm not sure if this work-around will work with the 
plug-in but why not try it?