Like I said: You cannot just change the color of the background for one type of page only.
“Is there a way to change the way picture are displayed?”
There is a way for everything, but that requires customization.
“I don’t have cache, I try with wordfence deactivated but still region bring to default city”
The reason you could not navigate to the region or country was because you had this setting : GD > permalinks > Add city slug in listing urls
That is only a valid setting if you only use one region and one country.
You can remove tabs at GD > design > detail > Exclude selected tabs from detail page.
To add tabs, look here: http://docs.wpgeodirectory.com/core-place-settings/#custom
Look for “Show as a tab on Detail page?”
Please do not use private messages unless you need to keep something private. Other users might want to learn from our discussion.