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i have Ubuntu 12.04, and i run unity 2D (so i can run all of my monitors with xinerama).

a problem that i have is when i hit alt+tab, it highlights the new [active] window with a white border. well, if the window i want is behind another window that has a lot of white (like a web browser that is opened to a page with a white background (i.e. 80% of the web)), i can't tell which window i've alt-tab'd to.

where can i change the color and thickness of the window when it has been highlighted via alt+tab? i'd like a nice, thick orange or red background.

is this a CCSM thing? or do i need to alter via the metacity files?

thanks in advance.

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Tim reports a a similar desire with Unity 3D. – John S Gruber Aug 14 '12 at 3:59

Based on the answer found here: How I turn off backlight around switcher icons

Short Answer

You need to edit the file /usr/share/unity/5/launcher_icon_glow_200.png. I used GIMPs Colors -> Map -> Color Exchange to edit the color to my liking.

Long Answer (had inline images, but my rep is too low)

I first used the referenced answer to delete the background PNG as described and then was able to locate the file(s) you want to edit. In my case, I found that just changing the glow was not enough.

First make a back up of the two files, launcher_icon_selected_back_150.png and launcher_icon_glow_200.png.

cd /usr/shar/unity/5
sudo cp launcher_icon_selected_back_150.png launcher_icon_selected_back_150.png.bak
sudo cp launcher_icon_glow_200.png launcher_icon_glow_200.png.bak

You can edit the two files however you like. To keep it simple, I edited just the background color:

sudo gimp launcher_icon_selected_back_150.png

I personally made the selected background darker. If some Gimp effect isn't working, make sure you change the color mode to RGB.

Here's what it looks like when I alt + tab looks now:

enter image description here

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i just got to looking at this. guess i wasn't specific enough with my question. i'm looking to change the color/border around the actual windows of the program i am highlighting, not the icons within the launcher window. say i got 10 terminal windows open, spread across 4 screens, plus google open on one. if i am trying to alt+tab to the terminal window on the same screen as Google, i don't really know when i've landed on it. the quick launcher window is just showing 10 terminal icons. so i don't know which is which. i want to change the color that outlines the actual terminal window. – jasonmclose Oct 9 '12 at 14:10

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