Your Subpage templates allows up to 9 content sections and 5 sidebar sections (sidebar sections only display on the default template). Each section can contain text, images, etc.

To add or edit sections, navigate to Content > Sections in the CMS.

Content - This is the main content block and supports the content/styles of the page content.

Background Color - This color allows you to set the background color of the section and should be a html hex value.  A good reference is http://www.w3schools.com/tags/ref_colorpicker.asp.

Background Image - This serves as the section background image.  This image should be 1,400px in width by the desired height.  The height will depend on the amount of content in the section.  A recommended height would be between 600px and 1,200px (double for retina).

Container Fullwidth - Displays the content in a fluid/full width container.

Container Narrow - Displays the content in a narrow/smaller container.

Dark Background - Selecting this checkbox displays the content in white color on top of the site default section background color or dark background image.  

Parallax Background - This option turns the Background Image into a parallax background.

Remove Padding - Removes the top/bottom padding from the section.

Section - Overlay - This is a section category under Section Options.  When this category is assigned to a section a dark overlay with opacity displays between the background image and content of the section.