To change the background click on the label bar and in the layer window select the style tab.
Choose a source from the background top tab then upload an image or pick a background color.

Universitatea din București,
B-dul Regina Elisabeta nr. 4 - 12, etaj 4, Sala 423
Bucuresti, România
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Open source framework for designers and developers to create responsive, fast & robust Joomla based websites and templates.
The Two is a stylish and easy-to-use Joomla Template best suited for a contemporary web design studio and creative agency, web designer's portfolio, graphic design, website building..