Without using a 3rd-party application, how do I go about changing the icon in the sidebar for the Developer folder? When I click on "Get Info" for this icon it's showing the icon does have the hammer icon but it's not showing in El Capitan in the sidebar when I add it over there?

Does anyone have a solution or can refer me to an article that will provide me with some direct information on how to add/edit this?

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    I believe they're all generic icons, unfortunately - have a look at /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources, all the sidebar icons are there – perhapsmaybeharry Jun 12 '16 at 8:17
  • @perhapsmaybeharry I can see the Developer icon is in the folder there and it's still not showing up in my Sidebar :-( – Danijel-James W Jun 12 '16 at 12:41
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    @Danijel-JamesW the icon you see is the generic "Finder" folder icon, named DeveloperFolderIcon.icns. However, sidebar icons are named Sidebar*.icns and are monochromatic. I'm not sure if it's possible to add/edit a sidebar icon without affecting all other sidebar icons. – perhapsmaybeharry Jun 12 '16 at 12:50
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    The Dropbox folder has a custom icon in the sidebar? What gives??! dropbox.com/s/xt8u2orepav0p78/… – Joshua Pinter Feb 10 '18 at 2:58

I found a SIMBL plugin that changes the icons on the sidebar to custom ones. By removing the icons from the configuration file, it doesn't replace any icons with custom ones, but only allows the icon of the folder itself to be displayed on the sidebar. Keep in mind that this will also change your home folder, All My Files folder and all other folders to display in colour.

Download modified version here

Remember to use mySIMBL for the plugin to fully work: mySIMBL download

Disclaimer: The original plugin is made by W0lfschild and is open source. I do not own this file, I have only provided a version with pre-edited config files. Original version is on GitHub.

  • @hmedia1 If you have another idea for a better solution to this problem, please let me know or edit my post, and I'll be happy to make that change. – wateroverflow9102 May 7 '18 at 4:34

Only items you can activate from Finder > Preferences > Sidebar have custom sidebar icons. If you manually add folders, such as the Developer folder, to your sidebar favorites, they will show up with a generic sidebar icon, even if the folder has a custom Finder icon.

The only way to change this would be with hacks as described by e.g. Keyboard_Gamer's answer.

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    Dropbox is not listed there and has a custom icon – ohcibi Oct 27 '18 at 14:40
  • @ohcibi that is probably because Dropbox is installing a Finder extension which makes this possible. – Kevin Dreßler Nov 13 '18 at 21:40

In XtraFinder Preferences, check "Show colorful icons in the sidebar". A side effect is that this will make every icon colorful, maybe you like it.

  • I don't think we should just down-vote him because it's not an appropriate answer. It's easier to provide more supporting comments to his answer. Also, it damages your reputation on here too guys. Please play nice to new members. :) – Danijel-James W Mar 7 at 4:35
  • Sorry, I didn’t see the requirement of not using third-party app. That’s my fault. – Di Liu Mar 8 at 5:41

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