How to change the task bar location and add or change the background image or color, on the Raspbian Raspberry Pi Desktop!
Change Task Bar Location
When you first install the Raspbian OS and startup your Pi, you will notice the task bar location and application quick launch icons, are at the top of the desktop.
Did you know, the task bar can be moved to the bottom, left or right, of the desktop? And, you can edit the quick launch icons too? Here is how to do that.
1st, right click in a blank space of the task bar to bring up the task bar settings menu, and click on “Panel Settings” in the list.
Under the Geometry tab, you click on the location you want the task bar and it will move there. There are a few other settings there you can change, if you want to change the length and width, etc. Click OK to save the location.
Edit the Quick Launch Icons
Usually, the default quick launch icons in the task bar are the web browser, file cabinet, terminal, Mathematica, and Wolfram. But these icons can be edited to what you want.
It will bring up a box like the one here to the right. Click on Application Launch Bar in the list and then click on the Preferences button and it will show a box like the one below.
On the left side of the box, are the icons that are already there in the tray. Click on the ones you want to remove and click the remove button in the middle of the box. On the right side are applications you can add. Click on the ones you want to add and click add button in the middle of the box, at the top. You can also switch them around with the up and down buttons. Then click OK when done.
As an example, I removed Mathematica and Wolfram icons and added the Sense HAT Emulator, to the quick launch tray.
How To Change the Background Image
With the new PIXEL desktop Raspbian update, you can choose from several images to use as a background. Just right click in any area of the current desktop background and it will bring up a window box with a list. Click on Desktop Preferences, at the bottom of that list.
Then to change the background, click the little folder icon next to Wallpaper, to bring up other background image choices.
Choose the one you want (it shows a small thumbnail preview to the right) and click open and it will be set as your background image.
Or you can also just use a background color, if you want.
Just above the line that has the image, is the Wallpaper mode. Select “Fill with background color only” in the drop down list. Then adjust the color wheel and click on the color you want. Once done, click OK and then click close to close the box. Then the background will change to the color you picked.
You can also use both, a color and a background image. Play around with these settings until you get the desired look you want, on your Raspberry Pi!