How to blurminal your OS X Terminal

This tutorial will guide you through the steps to install and configure Blurminal, a SIMBL hack that allows you to ‘blur’ the background of Leopard’s Terminal.

terminal before blurminal is applied

terminal after blurminal is applied

  1. First up, you’ll need to download and install SIMBL, if you don’t have it installed already. The installation process is simple – you’ll click ‘next’ a few times and be done.
  2. Now download Blurminal and extract Blurminal.bundle to:

    /Library/Application Support/SIMBL/Plugins/

  3. You’ll be prompted to enter your password in order to copy the file into the Plugins folder.
  4. Quit the Terminal (if it’s open) and re-launch it. Assuming you have some level of transparency set, the background should now be blurred.
  5. If you want to increase the level of blurriness, enter the following command in a Terminal:

    defaults write ‘Blurminal Radius’ -float x.x

    where x.x is a number higher than 1.0 (which is the default level). Restart the Terminal and it’ll be even blurrier now :)

7 thoughts on “How to blurminal your OS X Terminal”

  1. Does not work on my older G4 machine. Imagine this is because the plug-in uses core animation. I’ll try it out when I get a new MacBook Pro when they release the update to the MacBook family come October (we hope).

  2. How do you uninstall this if you don’t like it? I normally don’t like having plugins and things like that that can possibly slow down my computer. I do like a lot of eye candy though.

  3. Awesome ! Works perfectly, and that’s way faster than iTerm !

    @Bob, I suppose you just remove the Blurminal.bundle from /Library/Application Support/SIMBL/

  4. Just tried it and got the following message when I fired up the terminal:

    “Terminal 2.1 (v272) has not been tested with the plugin Blurminal (null) (v1.0). As a precaution, it has not been loaded. Please contact the plugin developer for further information.”

  5. To solve the John Carney’s problem, just right click the ‘Blurminal.bundle’ file, click ‘show content’, use any text editor to open the ‘/Contents/info.plist’, change the ‘MaxBundleVersion’ value to the number in your error message.(In your case, you should change to 272 or higher.) Quit and re-launch Terminal, it’s ok now.

  6. Lion and after has blurring built in. If you want to uninstall Blurminal just go to /Library/Application Support/SIMBL/Plugins/ and delete the Blurminal.bundle.

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