The navigation tree presents data categorised by themes. Each theme is identified by an icon, and a colour:
Themes are organised in categories and sub-categories, with datasets attached at the lowest category level. Browse through themes, categories, and subcategories of the navigation tree to access available datasets.
A theme gets selected by clicking the theme name or theme icon.
Each category and sub-category in a theme of the navigation tree can be expanded:
or collapsed:
Once selected, a category gets highlighted with a shade of the parent theme colour: