expected something more creative on their part

Readme.txt

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* 1.- Select style for nautilus *
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Edit (gedit) the file ../MediterraneanNight/gtk-3.0/gtk.css

go to the last line of the file, there are four options for nautilus:

1.- "gnome-applications-gray.css" (nautilus sidebar and toolbar dark gray )
2.- "gnome-applications-unity.css" (nautilus sidebar and toolbar dark gray for UNITY)
3.- "gnome-applications-light.css" (nautilus sidebar and toolbar light)
4.- "gnome-applications-gray-light.css" (nautilus sidebar dark gray and toolbar light)

YOUR SELECTED
(nautilus sidebar and toolbar light)

@import url("gnome-applications-light.css");

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* 2.- Select style for titlebar buttons *
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If you prefer the buttons glassy style for titlebar (apple style):

Copy the contents of the file "metacity_buttons_glassy.tar.gz" in folder .. /MediterraneanNight/metacity-1/

idem for unity_buttons_glassy.tar.gz, copy the contents in folder .. /MediterraneanNight/Unity

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YOUR SELECTD GLASSY BUTTONS