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diff --git a/zenmap/zenmapGUI/higwidgets/higlabels.py b/zenmap/zenmapGUI/higwidgets/higlabels.py
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+++ b/zenmap/zenmapGUI/higwidgets/higlabels.py
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+#!/usr/bin/env python3
+
+# ***********************IMPORTANT NMAP LICENSE TERMS************************
+# *
+# * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap
+# * Project"). Nmap is also a registered trademark of the Nmap Project.
+# *
+# * This program is distributed under the terms of the Nmap Public Source
+# * License (NPSL). The exact license text applying to a particular Nmap
+# * release or source code control revision is contained in the LICENSE
+# * file distributed with that version of Nmap or source code control
+# * revision. More Nmap copyright/legal information is available from
+# * https://nmap.org/book/man-legal.html, and further information on the
+# * NPSL license itself can be found at https://nmap.org/npsl/ . This
+# * header summarizes some key points from the Nmap license, but is no
+# * substitute for the actual license text.
+# *
+# * Nmap is generally free for end users to download and use themselves,
+# * including commercial use. It is available from https://nmap.org.
+# *
+# * The Nmap license generally prohibits companies from using and
+# * redistributing Nmap in commercial products, but we sell a special Nmap
+# * OEM Edition with a more permissive license and special features for
+# * this purpose. See https://nmap.org/oem/
+# *
+# * If you have received a written Nmap license agreement or contract
+# * stating terms other than these (such as an Nmap OEM license), you may
+# * choose to use and redistribute Nmap under those terms instead.
+# *
+# * The official Nmap Windows builds include the Npcap software
+# * (https://npcap.com) for packet capture and transmission. It is under
+# * separate license terms which forbid redistribution without special
+# * permission. So the official Nmap Windows builds may not be redistributed
+# * without special permission (such as an Nmap OEM license).
+# *
+# * Source is provided to this software because we believe users have a
+# * right to know exactly what a program is going to do before they run it.
+# * This also allows you to audit the software for security holes.
+# *
+# * Source code also allows you to port Nmap to new platforms, fix bugs, and add
+# * new features. You are highly encouraged to submit your changes as a Github PR
+# * or by email to the dev@nmap.org mailing list for possible incorporation into
+# * the main distribution. Unless you specify otherwise, it is understood that
+# * you are offering us very broad rights to use your submissions as described in
+# * the Nmap Public Source License Contributor Agreement. This is important
+# * because we fund the project by selling licenses with various terms, and also
+# * because the inability to relicense code has caused devastating problems for
+# * other Free Software projects (such as KDE and NASM).
+# *
+# * The free version of Nmap is distributed in the hope that it will be
+# * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties,
+# * indemnification and commercial support are all available through the
+# * Npcap OEM program--see https://nmap.org/oem/
+# *
+# ***************************************************************************/
+
+"""
+higwidgets/higlabels.py
+
+   labels related classes
+"""
+
+__all__ = [
+    'HIGSectionLabel', 'HIGHintSectionLabel', 'HIGEntryLabel', 'HIGDialogLabel'
+    ]
+
+import gi
+
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk, Gdk
+
+
+class HIGSectionLabel(Gtk.Label):
+    """
+    Bold label, used to define sections
+    """
+    def __init__(self, text=None):
+        Gtk.Label.__init__(self)
+        if text:
+            self.set_markup("<b>%s</b>" % (text))
+            self.set_justify(Gtk.Justification.LEFT)
+            self.props.xalign = 0
+            self.props.yalign = 0.5
+            self.set_line_wrap(True)
+
+
+class HIGHintSectionLabel(Gtk.Box, object):
+    """
+    Bold label used to define sections, with a little icon that shows up a hint
+    when mouse is over it.
+    """
+    def __init__(self, text=None, hint=None):
+        Gtk.Box.__init__(self, orientation=Gtk.Orientation.HORIZONTAL)
+
+        self.label = HIGSectionLabel(text)
+        self.hint = Hint(hint)
+
+        self.pack_start(self.label, False, False, 0)
+        self.pack_start(self.hint, False, False, 5)
+
+
+class Hint(Gtk.EventBox, object):
+    def __init__(self, hint):
+        Gtk.EventBox.__init__(self)
+        self.hint = hint
+
+        self.hint_image = Gtk.Image()
+        self.hint_image.set_from_icon_name(
+                "dialog-information", Gtk.IconSize.SMALL_TOOLBAR)
+
+        self.add(self.hint_image)
+
+        self.connect("button-press-event", self.show_hint)
+
+    def show_hint(self, widget, event=None):
+        hint_window = HintWindow(self.hint)
+        hint_window.show_all()
+
+
+class HintWindow(Gtk.Window):
+    def __init__(self, hint):
+        Gtk.Window.__init__(self, type=Gtk.WindowType.POPUP)
+        self.set_position(Gtk.WindowPosition.MOUSE)
+        self.set_resizable(False)
+
+        bg_color = Gdk.RGBA()
+        bg_color.parse("#fbff99")
+        self.override_background_color(Gtk.StateFlags.NORMAL, bg_color)
+
+        self.event = Gtk.EventBox()
+        self.event.override_background_color(Gtk.StateFlags.NORMAL, bg_color)
+        self.event.set_border_width(10)
+        self.event.connect("button-press-event", self.close)
+
+        self.hint_label = Gtk.Label.new(hint)
+        self.hint_label.set_use_markup(True)
+        self.hint_label.set_line_wrap(True)
+        self.hint_label.set_max_width_chars(52)
+        self.hint_label.props.xalign = 0
+        self.hint_label.props.yalign = 0.5
+
+        self.event.add(self.hint_label)
+        self.add(self.event)
+
+    def close(self, widget, event=None):
+        self.destroy()
+
+
+class HIGEntryLabel(Gtk.Label):
+    """
+    Simple label, like the ones used to label entries
+    """
+    def __init__(self, text=None):
+        Gtk.Label.__init__(self, label=text)
+        self.set_justify(Gtk.Justification.LEFT)
+        self.props.xalign = 0
+        self.props.yalign = 0.5
+        self.set_use_markup(True)
+        self.set_line_wrap(True)
+
+
+class HIGDialogLabel(Gtk.Label):
+    """
+    Centered, line-wrappable label, usually used on dialogs.
+    """
+    def __init__(self, text=None):
+        Gtk.Label.__init__(self, label=text)
+        self.set_justify(Gtk.Justification.CENTER)
+        self.set_use_markup(True)
+        self.set_line_wrap(True)
+
+if __name__ == "__main__":
+    w = Gtk.Window()
+    h = HIGHintSectionLabel("Label", "Hint")
+    w.add(h)
+    w.connect("delete-event", lambda x, y: Gtk.main_quit())
+    w.show_all()
+
+    Gtk.main()