Improve UI and add default setting

VERSION

@@ -1 +1 @@
-0.2.1
+0.3.0

gui/menu.xml

@@ -6,17 +6,13 @@
         <attribute name="action">app.prefs</attribute>
         <attribute name="label" translatable="yes">_Preferences</attribute>
       </item>
-      <item>
-        <attribute name="action">app.reset</attribute>
-        <attribute name="label" translatable="yes">_Reset</attribute>
-      </item>
       <item>
         <attribute name="action">app.about</attribute>
         <attribute name="label" translatable="yes">_About</attribute>
       </item>
       <item>
-        <attribute name="action">app.quit</attribute>
-        <attribute name="label" translatable="yes">_Quit</attribute>
+        <attribute name="action">app.reset</attribute>
+        <attribute name="label" translatable="yes">_Reset</attribute>
       </item>
     </section>
   </menu>

lib/about.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+
+from lib.utils import Utils
+from os.path import join
+from gi import require_versions
+require_versions({"Gtk": "3.0"})
+from gi.repository import Gtk
+from gi.repository.GdkPixbuf import Pixbuf
+
+
+class About(Gtk.AboutDialog):
+
+    def __init__(self, parent):
+        super().__init__(
+            modal=True,
+            transient_for=parent,
+            program_name=Utils.NAME,
+            version=Utils.VERSION,
+            copyright="Copyright © 2021-2022 Zev Lee",
+            license_type=Gtk.License.MIT_X11,
+            website="https://github.com/zevlee/passphraser",
+            website_label="Homepage"
+        )
+
+        # Set up logo
+        filename = join(Utils.APP_DIR, f"{Utils.ID}.svg")
+        logo = Pixbuf.new_from_file(filename)
+
+        # Add logo
+        self.set_logo(logo)