[2.80] Does any know what is replaced for tex under bmesh.types.BMLayerAccessFace

Coding Beginning Blender Code and Development
1

Im trying to update an 2.79 addon which highlights the in the uv editor and also in the 3dview port. It uses BMLayerAccessFace and than specifically Tex. This part seems to be taken as tons of other stuff, i cant really find docu yet on it.

So does anyone know perhaps something about this?

Its this line of code which needs to be different
bm_instance.faces.layers.tex.verify()

I also look for change in this about PopMatrix

bgl.glViewport(*tuple(viewport_info))
bgl.glMatrixMode(bgl.GL_MODELVIEW)
bgl.glPopMatrix()
bgl.glMatrixMode(bgl.GL_PROJECTION)
bgl.glPopMatrix()