Currently, the only way to modify the admin theme is to do it outside of LimeSurvey, then copy the modified theme into the upload/admintheme directory.

It would be more comfortable (especially if you can't access the server directly) to be able to make changes, like for questionnaire themes.

And having several admin theme templates would be a plus.

I agree that this would be a "nice to have".

However, I feel like there is so many more really important features that are missing, that this would be one of the least important things for me. First of all: Usually one doesn't change admin themes all the time. You do it once and then it stays that way for a while. Most people actually will never change the admin theme at all. So a little bit of extra work here outside of Limesurvey seems a small trade off to me.

There are features for day to day survey create that I find much more important to tackle. Here a couple of examples:
- Answer option relevance just like we have subquestion relevance
- Loops
- Page concept in addition to the question group concept
- An improved upload question (with the answers stored better and accessible via expression manager so that you can display the uploaded file in the survey (e.g. if an image).
- a modern reporting tool that ideally allows to create customized reports that can be actually be shown to clients (e.g. with cross tabulation, modern looking graphs, etc.)
- etc.

These are just some features from the top of my mind that are far more urgent because they are completely missing, while changing the admin theme is a real niche request and it can be done today already, just not as comfortable as desired (I would guess that less than 1% of Limesurvey users has ever touched the admin them or even knows that it exists).

In any way, I do not want to discourage you of pursuing this. I just think it is low priority.

This forum section is just to discuss additional / new features. You should create a feature request in the bug tracker and ideally link it here so you can draw attention to your feature request. Just don't get your hopes up too much.

My feature request for a "page" concept is there for quite a few years now. At the moment (in LS4/5/6) the focus was on the GUI. I hope that for the next versions of LS we can expect some work on survey features again.

What can accelerate feature requests is finding a sponsor to implement it.

Thank you for your answer, indeed it is not a priority, and it is a niche.
The idea is to be able to customize the theme, as for questionnaire themes, for example, to have a personalized login page.

I have users, who see the LimeSurvey logo, and try to connect to the Lime service site, while it is not used at home.
Afterwards, they create incident tickets to indicate that they cannot connect (several cases). With a screenshot we understand everything.....

It is not the priority, but an idea to share before making the request (indeed, I have no illusions), because if no one is requesting, we will put the forces in other more critical subjects (RGAA...)

I will look at the concept of page