Thanks for the comment :)
Ive added specular highlights and environment reflection toggles that will come out with the next update
Also with the vertex colours, are you thinking using the colours as what is overlayed? Or using it as a mask for the material? Ive added a setting where you can choose a specific colour from the vertex data to be the mask, but if you meant having it be the actual colour, im thinking I might just add a general setting where you can overwrite or add the vertex colours ontop of everything else, what do you reckon about that?