First of all, you need
Infinity Engine Editor Pro. Once you have that installed, use Shadow Keeper to extract the ITM file for the Robe of the [Good/Neutral/Evil] Archmagi and for the Robe of Vecna. Open each with IEEP and see if there are any differences and change the Robe of Vecna accordingly.
If you don't want to go through all of that, then here's what you need to change:
Appearance: change
Paper Doll to
Robe Type #3 Colours: There are 3
Set Item Colors effects in the
Equipping Effects list. Click on the menu and select the first one, then click on the
Click to edit Parameters button of the form that appeared. Change
Gradient Number to 25 for Good, 27 for Neutral or 25 for Evil on the new form. Click on the
OK buttons on both of the forms to close them and return you to the
Item Maker. Select the second
Set Item Colors and go through the same process, this time change
Gradient Number to 28 (Good), 15 (Neutral) or 97 (Evil). Select the third effect and change
Gradient Number to 90 (Good), 48 (Neutral) or 47 (Evil).
Save the file, close IEEP, load up your game and start playing.
Linear Mode
