Dear Wolfgang and Hans,
context normalizes font names ... so you can leave the name as it is (works here)
I checked the font name in the terminal and the result as following: MacBook:ConTeXt graph$ luatools hanbatanglvt.ttf MacBook:ConTeXt graph$ luatools hanbatanglvt.otf MacBook:ConTeXt graph$ luatools HANBatang-LVT.otf MacBook:ConTeXt graph$ luatools HANBatang-LVT.ttf /Users/graph/Library/Fonts/HANBatang-LVT.ttf Thus font call "hanbatanglvt" doesn't work in my macbook. So, I thought my system is different from Hans' which may affect to this font coloring. I am using Macbook with OSX 10.8 and here are the versions of ConTeXt and LuaTeX: mtx-context | current version: 2013.11.01 12:20 This is LuaTeX, Version beta-0.76.0-2013040508 (TeX Live 2013/dev)(rev 4627)
get other users results when they test this?
I will upload this sample file in KTUG and ask to check. As soon as I know the result of other user, I'll let you know.
Is it OK to use another Korean font?
I tested other Korean font and got the correct output except the coloring.
best discuss that with Chof cum suis as fonts need to have the right logic
Thank you. Best regards, Dalyoung