In order to set the colours of the individual elements of the portal you have to:

1. Log in to the Administration Panel
2. Press on any section of the page
3. When the page edition menu appears, go to the second tab
4. Press the "Styles" button
5. Enter URL links to images in the appropriate parameters

Parameteres:

1. $primary-color:  - Portal's leading colour
2. $btn-color: - Button colour
3. $border-color: - Colour of the borders
4. $badges-color:  -Icon colour
5. $header-color: - Header colour
6. $footer-color: - Footer colour
7. $header-font-color - Font colour in the header