Pixelated Toolbar

[sksundram]

I was creating a folder. I don't know what happened, the toolbar becomes big and pixelated. I checked "customize toolbar" and played with the options to reduce the size but to no avail. How do I get it back?

[highend]

And in the "Customize Toolbar" window when clicking on the "Options" button, which button type is selected in that context menu?