Do you want to change the color of your box background? You can use simple CSS tweaks in
Canvas to do that.

Canvas theme
Canvas Child theme

Step 1 Login to the WordPress control panel

Step 2 Provided that we have already activated the Canvas Child theme, go to Appearance > Editor

Step 3 Enter the following code in the style.css file of the Canvas Child theme

Theme Name: Canvas Child
Version: 1.0
Description: Child theme for the Canvas theme
Author: Jezweb
Author URI:
Template: canvas

@import url(“../canvas/style.css”);

#wrapper {background: #000; background: skyblue !important;}

note: We are using a Canvas child theme so that your CSS settings will not be changed if there is an update with the main canvas theme.

Step 4 Click Update File and go to your online site. You should see the skyblue box background. You can also change the background by replacing the skyblue with your desired color.

Here is a video tutorial on how to change the color of the box background