set_top_bar_style

Sets appearance of the top bars for this.

If set to `ADW_TOOLBAR_FLAT`, top bars are flat and scrolling content has a subtle undershoot shadow when touching them, same as the [ `.undershoot-top`](style-classes.html#undershot-indicators) style class. This works well for simple content, e.g. [class@StatusPage] or [ class@PreferencesPage], where the background at the top of the page is uniform. Additionally, windows with sidebars should always use this style.

Undershoot shadow is only present if a top bar is actually present and visible. It is also never present if [ property@ToolbarView:extend-content-to-top-edge] is set to `TRUE`.

If set to `ADW_TOOLBAR_RAISED`, top bars have an opaque background and a persistent shadow, this is suitable for content such as utility panes, where some elements are directly adjacent to the top bars, or [class@TabView], where each page can have a different background.

`ADW_TOOLBAR_RAISED_BORDER` is similar to `ADW_TOOLBAR_RAISED`, but the shadow is replaced with a more subtle border. This can be useful for applications like image viewers.

See also [method@ToolbarView.set_bottom_bar_style].

Parameters:

this	a toolbar view
style	top bar style