[MacPorts] #60511: move to quartz as default backend

[MacPorts]

#60511: move to quartz as default backend
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  Reporter:  ra1nb0w                             |      Owner:  mascguy
      Type:  enhancement                         |     Status:  assigned
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  R Togl VLC VLC2 avahi cairo         |
  cairomm cherrytree clutter cogl gWakeOnLAN     |
  gconf gegl geoclue2 glade glib2 glibmm gnome-  |
  themes-extra gnubg gnucash-docs gtk-sharp2     |
  gtk2 gtk3 gtkextra3 gtkimageview gtkmm gtkmm3  |
  gtkspell2 inkscape lablgtk2 libVLC libVLC2     |
  librsvg meld netgen opencolorio pan2 pango     |
  pangomm pdfpc pidgin pspp py-cairo py-gobject  |
  py-pygtk reinteract tix tk tkdnd tkimg         |
  tktable ufraw webkit2-gtk wxgtk-3.0            |
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Comment (by mascguy):

 Replying to [comment:49 christophecvr]:
 > Replying to [comment:47 kencu]:
 > > my newer systems all use +quartz and the graphics look very sharp to
 me.
 >
 > Well it is actually gedit which is much sharper with x11 then with
 quartz.

 Typically things are blurry when the user has a high-dpi (aka retina)
 display, but the app doesn't advertise that it supports it. And indeed,
 `gedit` doesn't do that.

 So try adding `app.retina yes` to the portfile, and rebuilding.

 While I can't guarantee that will fix it, there's a fairly good likelihood
 that it will.

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Ticket URL: <https://trac.macports.org/ticket/60511#comment:53>
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