[Juan Mortyme]

@grimmace92 
OK, I did a quick check and ALL mpaa US ratings icon are working just fine for me. Sorry, you'll just have to do some old fashioned debuggering to fix it. But if you are still unsuccessful tell me what you've tried and I might be able to point you in the right direction.

White Icon works.  Just the colored one doesn't.  Also noticed that on 4k movies specifically there are multiple icons missing.  When I try to install from Latts repo it fails with these lines from the log.  I was able to install manually though.  I'm seeing that references to that being a bad thing though.  I deleted the addon and reintalled and still same thing.

2021-06-26 13:29:21.683 T:3647992032   ERROR: CCurlFile::Open failed with code 404 for https://holybid.com/kodi/repo/resource.i...-0.1.5.zip:
2021-06-26 13:29:21.683 T:3647992032   ERROR: CAddonInstallJob[resource.images.mediaicons.coloured]: failed to download special://home/addons/packages/resource.images.mediaicons.coloured-0.1.5.zip

@grimmace92 
Alrighty then, looks like the first thing you need is updated Latts' Repo.
If you still need them here are the "fixed" script.module.metadatautils-1.0.37 and script.module.metadatautils-1.0.40 
In the event you still can't get installed from Latts' Repo here is a "cleaned" and repacked version of resource.images.mediaicons.coloured-01.6.

The media icon packs have been a really troublesome addon to get installed correctly. If the update fails, which it most likely will follow thee steps. 1) Shut Kodi down. Clean out the temp  and packages folders in your addons directory. Try again to install either from repo or zip. if it works you're done, if not proceed to step two. 2) Repeat cleaning folders but this time delete the resource.images.mediaicons.coloured folder and contents as well. Try to install. And lastly if all else fails. 3) Repeat cleaning folders. Unzip the addon and copy it manually to your addons folder.

The only real down side of installing from zip or a forced manual install is with Matrix. Matrix will not give notifications if updates are available unless the addon is installed from a repo. Leia dose not have that "feature" or limitation.

So there you go. You now have the tools and knowledge. Use them wisely.