VTFedit texture question

[Open Blade]

If I have a stock texture vtf that I opened in Photoshop, made some changes and going to save as a different vtf, do I just use the default settings? I'm curious because I opened the texture first in vtfedit and the only thing checked was SRGB, but when I save as vtf in Photoshop, it wants to add other things, unless I go back and save it twice, then it add only SRGB.

For example, I like the red metal roof, but the so called blu metal roof is way more green then what I like. I made one that is more true to being blue then green.