Unlike Qt4, Qt5 doesn't come with a configuration tool to allow setting the icon theme, fonts or the style and instead, it tries to use the settings from the running desktop environment.

This works well for KDE and GNOME (as well as Unity) but you may encounter issues under other desktop environments such as Xfce, Cinnamon, MATE and others (I'm not sure what Qt5 versions are affected by this, but it seems to be fixed in the latest Qt 5.5.1 according to THIS comment).

Here's an example (Audacious 3.7 using the Qt5 interface under Linux Mint 17.2 with Cinnamon):

Blizzard's Battle.net tool was updated recently, probably in preparation for the upcoming WoW expansion called Warlords of Draenor, resulting in either a black screen or distorted / scrambled graphics on Linux (with Wine) with Intel graphics.

It looks like this is not a Wine or Battle.net bug but an Intel graphic drivers bug, at least that's what the Wine developers suggest.

Ubuntu 13.10 was released today and for those of you who plan on doing a clean install, here are 8 useful things to do after the installation.

Ubuntu Tweak, the popular tool that besides tweaking lets you easily install various applications that aren't available in the Ubuntu repositories, clean the apps / system cache and more, has been updated today, bringing support for the latest Ubuntu 13.04 along with some bug fixes.

The popular Unity Revamped PPA has stopped working once again a while back, but there's a new PPA that adds the same features to Unity along with some extra ones such as the Unity Touch Launcher icons.

The new Unity Revamped PPA, maintained by Garhuy, is only available for Ubuntu 12.04 LTS and adds the following features to Unity (with Compiz):