This tutorial explains how to configure Opera so that it will blend with your Plasma applications. To do this, we'll need to install the Opera Oxygen Project skin, set Opera to use your chosen Plasma Desktop scheme, and change Opera's default fonts to the ones which KDE uses.
Step 1: Installing the Skin
Open Opera and navigate to the following link:
Clickto install the skin.
Step 2: Applying the Skin & Changing the Color Scheme
In the Skins box, you will see a list of all the skins that are currently installed. Click onto apply the Opera Oxygen Project skin to Opera.
Click on the menu box next to Color Scheme and selectto let Opera use KDE's color scheme.
Step 3: Changing the Font
Go to. Click on the tab.
Opera has two default fonts - the normal font and the monospace font. You can change these default fonts by clicking on them. Change the normal font to DejaVu Sans and change the monospace font to DejaVu Sans Mono.
That's it! Now Opera will look and feel just like your Plasma applications.
This tutorial is based on Patrick Trettenbrein's blog entry entitled “How to make Opera 9.5 look native in KDE 4” (which no longer exists). Additional updates have been made as Opera has been updated.