Board Thread:General Discussion/@comment-30013798-20160919180817/@comment-29461750-20160929171722

It kind of is a new ship though. It's not only a new color scheme but it's also mising part of the solar panel.

Mining Guild TIE fighters [2] were modified TIE/LN starfighters [3] that the Mining Guild was allowed to use due to its association with the Galactic Empire. In order to make those fighters clearly distinct from the ones in direct service of the Empire, they had a yellow color scheme. They also had a notch cut in their stabilizers, giving them only eight solar collectors instead of twelve, which gave them improved visibility, but greatly diminished their combat capabilities and maneuverability

(Source: Wookieepedia)

It's a TIE yes, but it is very much so different from the imperial's TIE.