But why would you want RGBA support? It doesn’t really make you a better IT administrator, nor will it make your machine run better. It will, however, make your desktop pretty darn cool. Now, I will say that it has been confirmed that RGBA support will be included in Ubuntu 10.10. But if you can not wait until then, I have the fix for you in this very article.

What is RGBA support?

A picture tells a thousand tales. And as you can see, in Figure 1, RGBA support is quit solid (Pun intended). Of course not all applications support RGBA support. Unfortunately you will be hard pressed to find a browser that supports RGBA. But many applications do support RGBA and many more will come. If you are curious as to what applications will support RGBA, all you need to know is only GTK+ applications are included.

With all of that said, let’s get RGBA support added to your Ubuntu desktop.

Preparations

The first thing you will need is the proprietary graphics drivers for your card. I have tested this on an NVidia-based chipset and it works fine. To get your proprietary drivers click on System > Administration > Hardware Drivers. Go with the recommended driver for your system. You most likely will have to do a reboot after this is finished.

You will also need to enable Compiz and do so with a minimum of Normal effects. I prefer Extra..but this is up to you.

Now that the preparations are done, time to get to work.

Installation

Open up a terminal window and issue the following commands:

• sudo add-apt-repository ppa:erik-b-andersen/rgba-gtk
• sudo apt-get update && sudo apt-get upgrade
• sudo apt-get install gnome-color-chooser gtk2-module-rgba
• sudo apt-get install murrine-themes

You are done with the command line now. It’s time to enable support.

Configuration

Figure 2

Click on System > Preferences > GNOME Color Chooser and, in the Engines tab, check the Global check box and select Murrine from the drop down (see Figure 2). Now click on the Preferences button and (in the new window) scroll down until you see Configure of Enable/Disable RGBA support. In that section make sure both check boxes are checked and click OK. Now click Apply back in the main GNOME Color Chooser window to dismiss that window.

You now have to select a compatible theme. The only themes compatible with this are the Murrine themes. To do this follow these steps:

1. Right click on your desktop and select Change Desktop Background.
2. Click on the Themes tab.
3. Click the Customize button.
4. From the Controls tab scroll down until you find a Murrine them.
5. Select a Murrine them and click Close.
6. Close the Appearance Preferences window.

With all of this done, it’s now time to log out, log back in, and enjoy RGBA support.

Final thoughts

If you are an eye-candy junky like me, you will completely appreciate the RGBA support now available in Ubuntu. It’s not perfect yet, but it’s close.

Taskbar and Start Menu transparency adds custom transparency to the Windows Taskbar and Start Menu. Non-active windows transparency keeps the active window opaque and makes all other open windows transparent while Contrast Screen helps the user focus on the current task by placing a solid contrast screen underneath it that covers the rest of the computer desktop.

The Jelly effects are more unusual and harder to figure out. Activating Windows Bounce will bounce every window the user clicks on which did cause troubles with the Windows Start Menu on the test computer. Windows Resilence makes Windows act like jelly during resize while Window Kinetics adds basic kinetics to windows movement.

The program has a few quirks which can be attributed to the early version. The transparent windows effects work fine and without problems. The Window Resilence and Window Kinetics Jelly effects would not work on the test computer. That, or they were not recognizable. Windows Bounce was working but pretty annoying after a short while.

The best feature so far is the Contrast Screen option which makes it easier to work in Windows. The software program uses roughly 20 Megabytes of computer memory and users who only want the transparency effects are probably better off with an application that demands less system resources like Chaos Crystal