I created an image where all the locations of files/images/code are for customizing the Web Interface logon screen. Use this for creating a corporate branded Web Interface.
Direct Link for better reading https://www.jeroentielen.nl/wp-content/uploads/2011/10/WebInterface_5.4.01.png
For instance a WHITE theme:
Or a BLACK theme:
Or a Fokke & Sukke theme:
Well you get the idea