I have created separate logos for (a) very dark-background header and footers and (b) very light-background header and footers. The logos for footers and headers are also slightly different within the same mix. The footer logos include a slogan and the header logos do not. The logos have to be different to stand out, obviously. When I add any new mix to the Protean template, I can upload a separate and distinct logo for that template (new mix) in the header. For example, for a dark header, I will load the logo's lighter version. We do not get this option for the Footer within mixes, and I hope you agree we should have it there, too.
We can add a logo to the footer in the Navigation GUI. But as far as I can tell, I cannot create unique logos for Protean mixes there. So if I load a "white logo" there, it will not show up on the light templates. Conversely, a "dark logo" will not show up on the dark templates.
Here's a portion of the Header interface for a light mix; at the base of the screenshot you can see the labels and fields for Logo image upload:
Here is just the Logo image upload section in the Header of a darker custom mix for Protean. In this one, most of the logo is white to stand out against a very dark background; so, we can see very little of it below:
Contrast with this nice feature, the Footer section of the same light mix as the Header further above. Note, it has no "Logo upload," only a background image upload—not what I had in mind.
In the Studio > Navigation > System > Footer items GUI, seen below, we can specify a logo for the footer. I have a different version of the logo for my footer. It looks awesome on a dark background, but I need reverse lettering for a light background. The Navigation module only seems to allow the one footer image for the entire site. So, although welcome, it does not solve the problem.
I would love nothing better than for someone to show me what I'm missing and that adding footer variations for unique template mixes exists. But if not, I hope you designers at Una will considering adding this feature, making the Footer on equal footing with the Header regarding uploaded logo. Thank you.