Hello there, dali map is hexed in the Client with the stars background / sky.
If you want to have a map with that background, I suggest you create a map, then name it what you like but only 4 letters (D-A-L-I) then find the "dali" word in ragnarok client you use, hexing it using Hex Editor. (Follow this tutorial)
https://www.youtube.com/watch?v=1guiHbIpdlk
If you're using client 2013-12-23 or 2013-08-07 or 2012 04 10, you can use the source from @curiosity
Hope this help you.
Xenagoras's post in How to make a star map was marked as the answer