Text color is automatic, but "White text" is an option for both Blocks and Sections. Here selected for the Block only.
Styles
Style options for Sections or Blocks are found by clicking the name tab of the Section or Block.
"Full hero" styling below is selected in the Section. Usually only used on the start page of a website.

Full hero
Styling adding in the section under "section type"
"Small hero" styling below is selected in the Section.

Small hero
Background images in a section can also be transparent, with the "Transparent background image" checkbox in the Section under Styles tab.

Transparent background
Both Sections and Blocks have selectable background colors
Both Sections and Blocks have selectable background colors
Both Sections and Blocks have selectable background colors
Both Sections and Blocks have an option to center text and elements. If added to the Section it centers everything within each Block of the section. If added to a Block it centers only that Block.
Geo charts
Gives charts a special styling when selected for the Section under under Styles - Section type
Full screen section
Under Styles - Section type for the section you can set it to fullscreen. This will use the full width of a screen as seen in the section below.
This section uses the "Full screen section" styling.
This section uses the "Full screen section" styling.
This section uses the "Full screen section" styling.
This section uses the "Full screen section" styling.
This section uses the "Full screen section" styling.
This section uses the "Full screen section" styling.