Describes the possible top or bottom bar styles in an
ADW_TOOLBAR_FLAT is suitable for simple content, such as
AdwPreferencesPage, where the background at the
top and bottom parts of the page is uniform. Additionally, windows with
sidebars should always use this style.
ADW_TOOLBAR_RAISED style is suitable for content such as
where some elements are directly adjacent to the top/bottom bars, or
AdwTabView, where each page can have a different background.
ADW_TOOLBAR_RAISED_BORDER style is similar to
with the shadow replaced with a more subtle border. It’s intended to be used
in applications like image viewers, where a shadow over the content might be undesired.
New values may be added to this enumeration over time.
Available since: 1.4