Norway's new passports by design studio Neue, which feature illustrations of the country's landscape that change from day to night under UV light, have been realised after six years of development. The exteriors are coloured red, blue, white and navy respectively, as a nod to Norway's flag. A simplified version of the country's crest and the name of the document is embossed in gold on each cover. Inside the passports and travel documents, each page is printed with a different depiction of the Norwegian landscape, including mountainous scenes with lakes and streams. These background illustrations work both as decoration and a security element. When the pages are placed under a UV light, the landscape transitions from day to night scenes. Some pages reveal ribbons of fluorescent blue and green to represent the northern lights, while others illuminate the moon.