Sorry, I'm new to Krita and I still finding my way around it.

I don't know whether I just clicked something by accident, but all the colours in my image have all suddenly turned various shades of blue. On the right, where you can see the layers, the colours (from what I can see in the tiny versions of the image) are correct, but not on the main image itself. What could have caused this?

Also, I'm not particularly tech-savvy, so please explain in simple terms!

Thanks!

Can you please link to a screenshot? Your description doesn't ring a bell.

Ah, it's okay, I got around it by deleting Krita and redownloading it. Works fine now.

Thanks!

Seems to me like you maybe accidently turn off Red in the Channels, so everything wnet blue. next time if you have this problem again check it out.