@darthgtb
Some additional issues:

1. Why icons in tiles are so small?
2. Why I cannot change existing tile image?

@leocg
Actually it is the same problem. Icon is too small so I would like to change icon to page preview. But I still see this small icon.

@darthgtb
This gives me only option to choose image from disk.

To change tile image I used previously heart icon and arrows to choose image from prepared by Opera propositions. But now this way does not save changes. I still see small icon inside big tile.

@leocg
Actually it is the same problem. Icon is too small so I would like to change icon to page preview. But I still see this small icon.

@darthgtb
Some additional issues:

1. Why icons in tiles are so small?
2. Why I cannot change existing tile image?

Developer version is 28 and Stable is 27.

Yesterday this link http://www.opera.com/pl/computer/beta pointed to 27.0.1689.44. I've checked web installer, offline installer (where file name contains full version specyfication) and Opera/about checking version.

Today my opera is upgraded to 28.0.1750.15.

Besides I've checked stable version 27.0.1689.66. On both: dev and stable problem does not exists any more.

Actually I don't want. Regular Opera will replace my old 12.17.

BTW. Developer version older than stable? Funny. I wait for newer next version and check again.

According to this link http://www.opera.com/pl/computer/beta this is most recent version. Where I could get *.66 version?

My version is exactly 27.0.1689.44

Don't know what is last part responsible for. Language?

Opera crashes when I click "inspect element" with enabled option "Experimental address bar" (opera://flags)

Opera version: 27.

I'm still stick to Opera 12.16. But for test purposes I have installed Opera Next and saw Chrome in Opera skin. But why:
- I cannot customize keyboard shortcuts?
- I cannot open tabs just at very end on tabs?
- I cannot group tabs?

Why it is important to me? Because Opera 12 is loosing support (for example google docs are read only). I have to think about what will be my next browser. And if I can't see the difference between Opera and Chrome - I will choose Chrome.