Software for creating liveries.

[Onatic]

A question, what software do you guys use for creating liveries? And how do you "perfect" them? just curious.

[Ixia Irisborne]

I use GIMP, but I don't recommend it unless you have someone willing to teach you a little about it. It's not terribly user friendly, but it's free and pretty capable.
I'm not going to claim I'm anything like perfect with liveries, but it's mostly a mixture of using UV layouts (which either the model maker needs to provide, or you'll need to have access to the model files, themselves, to be able to create the UV layout, yourself, in Blender) as a layer that can be added/removed or toggled on/off, and simple trial and error.
Tracking down good railroad fonts is helpful, as well.
Don't worry, too much, about it being perfect, even if you're fully intending to upload it. Make it for yourself. If it's good enough for your own taste, that's all that actually matters.

[Onatic]

Thank you for letting me know!

[Ze Trackmeister]

The questions is:

How familiar are you with any graphic program?

[Onatic]

Well I've been using Krita as my main graphic program for a few months now, so I guess I am kinda familiar with it.

[CAMOGUY54321]

I use paintdotnet and it is easy ish and has good results