![]() ![]() The window manager is responsible for drawing the title bar and window frame around each application window. One of the changes which was prompted by the move to GTK+3 is that we are using a new window manager, called mutter, instead of the openbox window manager used in previous releases. GTK+3 just gives us a more modern basis for future development, and brings us into line with other Linux desktop environments. Some other controls have a slightly different appearance, but we’ve tried to make sure that everything still looks familiar and largely unchanged. You’ll notice a few changes to widgets – the most obvious is the new appearance of tabbed interfaces. It has ended up being necessary to find work-arounds to a lot of these – hopefully no one will notice them and everything will still work as before! The simple answer is that many things are much easier to do with GTK+2 than with GTK+3, particularly when it comes to customising the appearance of widgets – GTK+3 has removed several useful features which we relied upon. GTK+3 has been around for several years now, and people have occasionally asked why we didn’t move to it before now. Up until now, most of the desktop has used version 2 of the GTK+ toolkit, but increasing numbers of Debian applications are using GTK+3, so to try and keep things consistent, we’ve upgraded all our software and the desktop itself to the newer version. GTK+ is a layer of software that applications can use to draw standard user interface components (known as “widgets”) such as buttons, menus and the like, so that all applications have a consistent look and feel. GTK+3Īll of the desktop components and applications are now using version 3 of the GTK+ user interface toolkit. However, over and above the changes in Debian itself, the ‘bullseye’ version of Raspberry Pi OS has a number of significant changes to the desktop environment and to the support for Raspberry Pi hardware. ![]() So what is new this time?ĭebian ‘bullseye’ has relatively few major changes which are visible to users – there are some under-the-hood changes to file systems and printing, but most of the changes are patches and upgrades to existing applications and features. ![]() We’ve been working on the corresponding ‘bullseye’ release of Raspberry Pi OS it’s taken a bit longer than we’d hoped, but it is now available. ![]()
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