Can I change the styling and size of the icons available inside Canvas?

Can I change the styling and size of the icons available inside Canvas?

Yes, you can resize and change color and styling for the icons. 

To resize, after adding an icon, drag the corner of the icon to resize it as you wish. To change it's color and styling, click on the icon and you will view the Style properties on the left. From here you can customize the color, background, shadow, padding, and radius as you want for your page design.