[Image: http://puu.sh/33huA.png]
Green circles indicate correct colors, red circles indicate the new cyan colors coming up as blank. I don't know what the 2nd and 3rd dye values mean but they don't seem to be consistent even for dyes that look the same, probably don't really mean much.
To help you out here's the lines I see that match up with where it's blank for the cyan dye:
<ItemDesc Item_ID="22518874025876167" Shop_Name="" Area="" Char_Name="Griffykins" Comment="" Start_Time="63505332976135" Item_ClassId="63030" Item_Name="Fixed Color Dye Ampoule" Item_Price="300000" Item_Color1="65535" Item_Color2="3498837" Item_Color3="16184053" Count="83"/>
<ItemDesc Item_ID="22518873998862525" Shop_Name="" Area="" Char_Name="Griffykins" Comment="" Start_Time="63505332976135" Item_ClassId="63030" Item_Name="Fixed Color Dye Ampoule" Item_Price="300000" Item_Color1="65535" Item_Color2="0" Item_Color3="7818128" Count="83"/>
<ItemDesc Item_ID="22518874025942860" Shop_Name="" Area="" Char_Name="Myungsoo" Comment="Welcome! Offers accepted! Note or add!" Start_Time="63505340077588" Item_ClassId="63030" Item_Name="Fixed Color Dye Ampoule" Item_Price="300000" Item_Color1="65535" Item_Color2="6518165" Item_Color3="11426140" Count="92"/>
Seems that your code has issues with Item_Color1="65535" which should show up as a bright cyan
Anyways, I hope this information helps in improving this tool when you are feeling up to the challenge :thumb:
P.S. I want to know how the heck you converted these magical numbers into colors, been puzzling over it for the past couple hours