[gtk/wip/jimmac/HC-italic-hints] fontchooser: Add a tooltip to the tweak button

[Matthias Clasen <matthiasc src gnome org>]

commit 018bd0a927e7e2d2a7c3dd0c8d1866652990b1b8
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Aug 29 12:13:32 2022 -0400

    fontchooser: Add a tooltip to the tweak button
    
    Icon-only buttons are always better with a tooltip.

 gtk/gtkfontchooserdialog.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtkfontchooserdialog.c b/gtk/gtkfontchooserdialog.c
index 5aeddd20c4..44ea27b526 100644
--- a/gtk/gtkfontchooserdialog.c
+++ b/gtk/gtkfontchooserdialog.c
@@ -181,6 +181,7 @@ setup_tweak_button (GtkFontChooserDialog *dialog)
       gtk_widget_set_focus_on_click (button, FALSE);
       gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
       gtk_button_set_icon_name (GTK_BUTTON (button), "emblem-system-symbolic");
+      gtk_widget_set_tooltip_text (button, _("Change Font Features"));
 
       header = gtk_dialog_get_header_bar (GTK_DIALOG (dialog));
       gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);