For reference, this function is also allowed by Blizzard to support the Mod, and since it is a function that has been used for a long time, I do not think there is any problem with using it. Both single player and multiplayer are supported.

1. Add Korean
2. Bug fix

Click here for Korean help.

1. Rune : (Number) + Color
2. HP5 : Red
3. MP5 : "Magic" Blue
4. Gold : G
5. FRP : Purple
6. Gems : "Crafted" Amber
7. Jewel, Charm : Red *
8. Items : [*] - No color applied

1. Create a 'mods' folder under the Diablo 2 Resurrection folder.
2. Download the d2supporter.zip file and move it to the 'mods' folder.
3. Unzip it.
4. Result
5. Launch the launcher and select the Game Settings menu from the Options menu.
6. Check 'Additional...' and enter "-mod d2supporter -txt".
7. Press done and run the game. If mod is applied, the gamma value adjustment work performed at the first execution will proceed.

https://d2supporter.tistory.com/