That's exactly the problem I have with latest Opera 47.0.2631.80.
When browser starts speed dial is too lazy to load the real colors and is a bleak parody of what it used to be.
Here's an example of wrong colors
https://i.imgur.com/V6mNUYx.png
And my usual Speed dial looks like this
https://i.imgur.com/q2qvUWf.png
After I refresh the page it goes back to normal, but some time later reverts back to pastel colors.
I use Windows 8.1/64 bit, Intel i3 processor and ATI Radeon HD 5730 graphics.
Is there a place I could report this or add info to a previous reports?