I want to tailor the look of DHIS 2 to my organization. How can I change the flag in the top-left corner and put a notification on the login screen of DHIS 2? 
How do I change the appearance of the DHIS 2 login screen?
dhis2
The appearance can be changed by going to Apps > Settings > Appearance. From here you can set an application title, notification, left-side footer, right-side footer and flag to appear on the login page.