It is getting better. Youre logo`s have indeed a white bit around it. Also they are stretched. How to avoid ? Well rescale the image from 2048x2048 to 2560x2048. Put your decals onit etcetra and when finished rescale back to 2048x2048. To get away from the darkness use a pinestripe of white or any other light colour. Or put some light stripes around the decals or change the colour completly.