It used to be yellow, but now it's purple and it won't change back. I can manually select the highlight color with the highlight menu, but the highlight button default color cannot be changed. I have searched extensively on the internet with no luck.
iMac 27", macOS 10.13
No idea how the filename got chopped off, but I do have only poor vision in one eye, it was... but I bet you guessed it...
com.apple.Preview.plist
It looks like that info is held in...
/Users/YourUserName/Library/Containers/com.apple.Preview/Data/Library/Preferences/com.apple.Preview.plist
I moved that file to the Desktop after quitting Preview, started Preview & could not change the highlight color, Quit Preview & strangely it didn't create a new plist as usual, maybe a restart was needed???
Put that file back & could change highlight color again.
Do you have a Time Machine Backup of...
/Users/YourUserName/Library/Containers/com.apple.Preview/Data/Library/Preferences/com.apple.Preview.plist
To change the default OS X highlight color, head to System Preferences > General. There, you’ll see a drop-down menu labeled Highlight color, which should be set to the default “Blue” unless you or someone else using your Mac has previously changed it.
If you’re not happy with any of the OS X highlight color options, just select Other from the bottom of the drop-down list. This will launch the familiar OS X color picker where you can choose any color at any brightness.
https://www.tekrevue.com/tip/how-to-change-os-x-highlight-color/
Thanks again for taking the time to comment, but perhaps I need to clarify my question. Your comment addresses the temporary highlighting function when I select a text in any document. In Preview, I can select a portion of text and then hit the highlight button in the toolbar which applies highlighting permanently to a portion of text. The button for highlighting shows a highlighting pen on it. That is the form of highlighting which I am having trouble with.
Thank you for your comments, but the default OS X highlight color is completely separate and different from the default highlighting color in Preview for pdf documents.
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Ah, I was afraid of that after thinking about it, dont you have this?
Or are you saying that is what doesn't work I guess!
Thanks! I can select the color with the drop down menu, but it's more convenient to just hit the button. I'll play around with your suggestions and see if I can make yellow the default again.
Ok, let us know please.
How to change default highlight color in Preview (High Sierra) for .pdf files?
