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I was trying to change the scrollbar's color's or contrast to make it more easily noticeable but after using this question's answers I got this effect on my windows

enter image description here

this is my /usr/share/themes/Ambiance/gtk-2.0/gtkrc

How can I revert to the default theme ( I am using Ambience theme right now)

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up vote 4 down vote accepted

Since re installing the themes is by far the easier thing to do:

  • sudo apt-get install --reinstall light-themes
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