[Help Wordpress] Change background color "light" skin

Change background color "light" skin

Hi,

I've got a little question about the Royal Slider for Wordpress. I use the "light" skin for a slider with Nearby slides. There is a little space
between the slides but that space color is gray now. I want to change it in another color, white. How can i change it??

I attached a .jpg file for an example.

Thanks for the answer in advance!

Cheers! Edwin.

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