Hello, I'm jumping in now from the side of the store operators. In principle, we have no problem with changes to the categories. We probably just need to clarify what the "category id" is for you. If it is the same for you as it is for us - namely the "cat=411" then unfortunately this (411) is not changeable.
Whereas changing the category name is completely hassle-free.

This is currently the structure we have:

Currently you can use the following on store.kde.org:

• http://store.kde.org/member/avatar/EMAIL_HASH_MD5/SIZE

or

• http://store.kde.org/member/avatar/EMAIL_HASH_MD5/SIZE?width=WIDTH

or gravatar like

• http://store.kde.org/avatar/USERNAME?s=SIZE

or

• http://store.kde.org/avatar/USERNAME?s=SIZE&w=WIDTH

A redirect to the file is then returned as the result.
A file conversion is currently not implemented and also not planned.

Thanks for the clarification. I added the missing categories in configuration and I hope it works as expected now. Are you missing anything else?

Hello, I took a quick look at our source code and so at first glance I can see no problem.
I don't know if it's helpful, but I've included an example of an answer from our server below.

Thank you. :-)