How do you change image border color in VSDC video editor

[Cyborggeffien]

I create a 512x384 Project in VSDC Free Video editor. I change the project color to red. I insert some images by using the wizard into the Project. The images have the 3:2 Aspect ratio. The project's Aspect Ratio is 4:3.

The images have black bars above and below them (there is no borders effect). The images are grouped into a sprite. Is there any way to change the colors of the borders of all images at once without having to change each image one at a time?

I couldn't upload pictures for some reason (don't ask me why). I had to upload them as attachments instead.

Additional Notes: I set the Sprite's Trim the Edges and Show Effects to True. I then set Fill background to True and set the background color to red. It has no effect.