Do you love transparency effects? Do you have a fixation with Aero Glass? Do you love Opera (Browser)? If the answer to any of those questions is no, stop reading. This post does not concern you. However, if the answer to all of them is yes, you must try out the new Z1-Glass skin for Opera.
Opera 10.5 introduces a new skinning parameter which allows it to support transparency for various internal elements. To see it in action, download the Z1-Glass skin from here and place the ZIP file in the Opera/skin directory. Select the skin from Tools–>Appearance.

Tab bar at the left
Due to current limitations in Opera’s skinning architecture, the skin works as intended only if your tab bar is positioned on the left or right (or at the bottom without visual tabs). While, the skin is usable with tab bar at top, the speed dial area would appear as solid black (instead of being transparent).

Tab bar on top
The skin was mainly created to demonstrate what is possible with Opera 10.5 and contains an overload of glass effect. It may not be to your taste. Also keep in mind that this is created for a pre-alpha build and as such contains some usability issues. One of them is that you would have to reset your configuration on each start-up in order to fix transparency issues (for tab bar at left configuration). Use this button for a quick fix.


