Theme development

Can anyone suggest where can I find nice ADMIN templates / themes?

I am not interested to use current admin themes which come by default with Drupal installation.

Hi.
I have this problem. I use the startupgrowth_lite theme.
If I create a new type of content, the content it puts seems to be boxed, that is, as if the side bars were active with content. If I use the basic page I do not find this problem.
How can I fix it?
Thanks in advance.

I've views block with id=block-views-block-services-block-1 which I used it in the menu link.

The menu link is now shown as https://demo59.com/gb/#block-views-block-services-block-1

As you can see it's really not looking nice with long hyphened words, is there any easy way to change it to something like this https://demo59.com/gb/#services

For one single project, I have different page layouts design / html which I want to use for different content types.

Can someone advise what are the best practices in D7 to achieve this?

I was reading and not sure if any of these below are the correct way to follow;

https://drupal.stackexchange.com/questions/16573/node-template-only-on-s...

Hi, I am very new to drupal and I need to call jquery.

I added this to mytheme.libraries.yml:

mysubtheme:
  css:
    theme:
      css/slippry.css: {}
    header: true
    js:
      js/slippry.js: {}
  dependencies:
      - core/jquery

All tutorials say this should call jQuery but for me it does not. The only way I can get my jQuery to work is if I put the script src=//jquery-url to my page.html.twig file, and I do not want to do this as jquery should be loaded client side.

good evening ,

i am developing a classifieds ads website for the sale of cellphone / mobile devices ;can any one assist me with a theme or module plugin for the various types of phones and mobile devices available instead of manually inputing pictures and specifications for each?( description , pictures, details and specifications of phones already existing)... i am new to drupal and would sincerely appreciate advice.