It was a cruft from my experiment of adding borders around titles.
It even caused an integer overflow because theme->menu_border_width can be
INT_MIN when menu_header_height is calculated.
+ 2 * theme->menu_items_padding_y;
theme->menu_header_height = font_height(&rc.font_menuheader)
- + 2 * theme->menu_items_padding_y
- + 2 * theme->menu_border_width;
+ + 2 * theme->menu_items_padding_y;
theme->osd_window_switcher_item_height = font_height(&rc.font_osd)
+ 2 * theme->osd_window_switcher_item_padding_y