Xibo client - RSS image resolution poor

Xibo server 1.7.9 - php 5.5.9-1ubuntu4.20
Xibo client 1.7.9 - Windows 10

I created a layout with a fullscreen layout (1920x1080). If I upload images to the server as images (e.g. png, jpg, etc). The images are presented perfectly and are resolved.

However if the same images are presented in a feed and consumed as feed by Xibo, the image resolutions are poor and not resolved. The feed layout is similarly fullscreen and the appearance is as follows (overridden template):


with optional style sheet (to fit image to screen):
.image img {
display: block;
margin-left: auto;
margin-right: auto;
height: 1080px;

How should I create the style sheet to ensure proper scaling and resolution?

Could you share your rss feed with us?