How to create a gradient color background?

Can I change the flipbook background to a gradient color?

Flip PDF provides "Gradient Color A", "Gradient Color B" and "Gradient Angle" options. "Gradient Color A" and "Gradient Color B" is the 2 sides color of the gradient background. The angle desides the lean of the 2 colors.

More details follow easy steps below:
1. In the left menu box, choose "Book-->Background Config"-->"Background Color";
2. Select color for "Gradient Color A" and "Gradient Color A" by clicking the back color card;
3. Click "Apply Change" on the top menu.