Sponsor logo layout improvement

[jahoni]

Personal preference, but I feel like the sponsor logos look pretty jammed together.

I'd suggest reducing the visual entropy by making all the logos a single colour kinda like:

[GarthDB]

I don't think we could set them to be single color without getting permission. @jenlgray do you think they'd be alright with it?

[jenlgray]

Good question. I think it'll be okay.

[GarthDB]

ok, it looks much better, so I'll go ahead. I'll keep the color versions in the folder just in case someone gets upset.