Annually events for Joomla community organized around the world. Joomla.org has a brief list of major Joomla Day since its early days at http://docs.joomla.org/Joomla!_Days/History
01. Hardware selection
Every slide includes a background, which can be a picture or solid color.
Step 1
To change the background click on the label bar and in the layer window select the style tab.
Step 2
Choose a source from the background top tab then upload an image or pick a background color.