TabPage.setIcon
void setIcon(gio.icon.Icon icon = null)Sets the icon of self.
classTabBar and classTabOverview display the icon next to the title, unless propertyTabPage:loading is set to TRUE.
[adw.tab_bar.TabBar] also won't show the icon if the page is pinned and [propertyTabPage:indicator-icon] is set.
Parameters
icon | the icon of self |