I used NEMO + and checked
8 Custom Window Title
9 Disable 1rag1 type parameters (Recommended)
10 Disable 4 Letter Character Name Limit
11 Disable 4 Letter User Name Limit
12 Disable 4 Letter Password Limit
13 Disable Ragexe Filename Check (Recommended)
19 Enable Title Bar Menu
20 Extend Chat Box
21 Extend Chat Room Box
22 Extend PM Box
23 Enable /who command (Recommended)
24 Fix Camera Angles (Recommended)
28 Increase Headgear ViewID
29 Disable Game Guard (Recommended)
33 Always Call SelectKoreaClientInfo() (Recommended)
34 Enable /showname (Recommended)
35 Read Data Folder First
36 Read msgstringtable.txt (Recommended)
37 Read questid2display.txt (Recommended)
38 Remove Gravity Ads (Recommended)
39 Remove Gravity Logo (Recommended)
40 Restore Login Window (Recommended)
41 Disable Nagle Algorithm (Recommended)
43 Always Use Email for Char Deletion
44 Translate Client (Recommended)
46 Use Normal Guild Brackets (Recommended)
47 Use Ragnarok Icon
48 Use Plain Text Descriptions (Recommended)
49 Enable Multiple GRFs (Recommended)
51 Always Show License Screen
53 Use Ascii on All LangTypes (Recommended)
61 Disable Packet Encryption
63 Use Official Cloth Palettes
64 @ Bug Fix (Recommended)
65 Load Custom lua file instead of iteminfo*.lub
68 Enable 64k Hairstyle
71 Ignore Resource Errors
72 Ignore Missing Palette Error
73 Remove Hourly Announce (Recommended)
76 Enforce Official Login Background
77 Enable Custom 3D Bones
84 Remove Serial Display (Recommended)
85 Show Cancel To Service Select
86 Only First Login Background
88 Allow space in guild name
90 Enable DNS Support (Recommended)
91 Disconnect to Login Window
97 Cancel to Login Window (Recommended)
104 Increase Hair Style & Color Limits
205 Enable Monster Tables
213 Disable Help Message on Login (Recommended)
222 Show Replay Button
May be custom item (Thailand Ragnarok).