Tried searching through the sub and couldn't find a solution, but I get this issue on some channels where if it's say 4:3, instead of being centered on screen, the image is shifted left or right.

Here's an example http://imgur.com/w3xzcN0

I've noticed it also on the 24/7 channels, a lot of them are anamorphic aspect ratio and instead of centering it on the screen, the image is pushed to the top or the bottom.

I'm also wondering if it's possible to change the gray colour to black, and if it's possible to stretch the image in the app itself.

I'm using the vaders app on fire stick.