Restore logo to ReadTheDocs pages

[doug-walker]

Adding the config file (.readthedocs.yml) got our ReadTheDocs site building again, after being broken for a while. However, it is now created using Sphinx 7.1.2 and Press Theme 0.9.1 and that has broken some things. Most prominently, the OCIO logo in the top left corner is gone and replaced with the word "logo". There may be other stuff broken too.

To see the issue, use the menu in the lower right corner of the RTD pages to switch from "v: latest" to an earlier version.

EDIT: Per the comments below, the logo does seem to be loading now. But for people running in "dark mode", it's a black logo against an almost black screen. We should be using the magenta OCIO logo since it will be visible in either light or dark mode.

If people notice any other aesthetic issues likely due to the infrastructure version updates, please note them in the comments below.

[shaneantrim]

Hey @doug-walker, I'm clicking on all of the previous versions on the main OCIO RTD page (https://opencolorio.readthedocs.io/en/latest/#) and the logo appears ok in the top-left unless I'm missing something?

[doug-walker]

@shaneantrim , well the logo is now loading for me too. Not sure what was going on there. However, I'm going to leave the issue open and edit the description. The problem now is that if the browser is running in "dark mode" it results in a black logo on an almost black page. We should be using the magenta OCIO logo.

[shaneantrim]

Hey @doug-walker, I'm interested in working on this. Can you confirm in what folder the code for this lives and in what language it is written in? I'm assuming this is HTML and CSS?

[doug-walker]

@shaneantrim , I didn't create the original RTD pages, so I'm not actually sure which image is being pulled from the various ones in the docs directory (there are several OCIO .png and .svg files). Perhaps @carolalynn or @scooperly knows?

There is some documentation here about how the RTD pages are generated.