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I've checked Mode and grayscale isn't checked. I'm still in RGB. I'm on a mac using Photoshop CS5 and, if it helps, I was trying to do a screen shot using cmd+shift+4 and must have hit the wrong key somewhere...
You may have switched Channels, with the Command + 3, 4 or 5 shortcut. Command + 2 should switch back to RGB, or you can check in your Channels panel. Make sure RGB is selected.
I hope that helps!
That was it. Thank you so much!
Some key I accidentally struck has altered my image. The command I gave is still in effect when I go all the way back in history. Somebody ought to publish a list of ways to hurt your image that do not appear in photoshop history. My history panel is recording all the commands that I know how to make. This is not a problem of failure of control+Z. The turning off of a channel using control+5 is an example of something that will change an image but does not appear in history and cannot be undone using control+Z. I must have done something like that. What did I do? The image has a posterized or rasterized appearance. Lessons in those two processes teach steps that do appear in history. I must have accidentally done some other alteration of state. My only choice now seems to be to start over and rebuild my image from scratch.
how it turn back the background into default ? it turns white and i dont know why please help me
Go to Preferences -> Interface -> Appearance -> Color Theme
Awesome! Worked for me, something new to learn~ thanks!!
You just saved my life 🙂
OMG, Howard Pinsky, I thought I wanted to kill myself until I quickly found your answer, it was accurate! You saved my life! LOL!!!! Thank you sooo much!
Double life saver and that 5 years after...
life saver! thank you
Somewhat related... I hit Shift-5 instead of Shift-F5 (on a Mac) and ended up with 50% translucent checkerboxes over my image. Apparently Shift-1 to Shift-0 are varying degrees of checkerboxes... with Shift-0 being the solution to getting out of this.
Thank You! 😉
Thank you very much. I made a shortcut mistake and Command 3 got me out of Photoshop Hell : )