Theme development

I went to edit a View and got the message: "The server refused this request because the request header fields are too large." I had edited the View several times in the past, without this error. First, what causes the error -- and how can I fix it?

Thanks.

This might be a very simple question to answer

I have a bootstrap based theme with multiple libraries.

I need to create a page template that does NOT attach all those libraries & CSS from the theme.

I this blank page template to generate PDF files from it with an external tool, so I don't want to bring all this CSS JS, I want to stay simple.

Do I really need to create an extra blank theme for this, of there is a way to ignore all those in this particular page--pdf-base.html.twig file?

Thanks!

I've got a Views Slideshow and cannot seem to get it to be 100% of the width of the screen. I know I've done this before, but I can't seem to figure out what I'm currently missing. 

Our dev site is: http://nl-sandbox.net/

You can see the slider there at the top - it's huge. I just want it to be 100% of the width of the screen, regardless of screen size (desktop, as mobile has a different front page).

Hello! I want to create a separate login page for my theme. Completely new and what I could change in design, customize as I want with CSS. I know there is / user but I want to do everything from scratch. On the Internet, I did not find any useful information for drupal7, so I ask for help. You can provide links to some articles or simply explain how to do this. I'm just starting to figure this out, so I ask for your help. Thanks)

Hi,

I am trying to hide a field 'field_company_notice' for all roles except the 'Editor' role from being able to add/edit this field.   I know I could use 'Field Permissions module but I only need this for 1 field (same field for 5 content types).

In my administrator theme  .theme Drupal 9 file I added:

I used "circular_chart-7.x-1.0" module on Drupal 7.82.

The circular chart works very well on Bartik theme, Bootstrap 7.x-3.15 theme and built-in theme of Drupal7 but it doesn't work in Drupal Bootstrap sub-theme. [.circles-wrp and .circles-text class doesn't display on node page and view block).

How can I solve this problem. Please help me. Thank you.