Sometimes, the content in your widgets might look too cramped in Ignite’s sidebar. If this is happening on your site, you can add the following CSS to the Additional CSS section in the Customizer (Appearance > Customize).
.sidebar-primary .widget {
padding-left: 12px;
padding-right: 12px;
}
As you can see, this will reduce the padding on the left and right sides to 12px. You can reduce these values further if needed.