Theme development

Hi All

I have a custom theme that has the following folder structure

• css/style.css
• sass/
  • setup/_mixins.scss
  • sections/_footer.scss
• style.scss
• gulpfile.js (compiles scss files imported in style.scss)

My _mixins.scss file has the following:

I am using Drupal 8.x and I wanted to use javascript to delete an option from the list of options within specific pages, i.e., content type, using a pattern of their machine names, i.e., proxy_request, in case the user is not an administrator and I searched and found this code inside a post and I used it inside the project's themes->mythemename->mythemename.theme file, but that didn't work and I have several problems I want to know how to solve, as I searched a lot I did not find a solution

I wanted to use javascript to delete an option from the list of options in case the user is not an administrator and I searched and found this code inside a post and I used it inside the project's themes->mythemename->mythemename.theme file, but that didn't work and I have several problems I want to know how to solve, as I searched a lot I did not find a solution

I'm doing a test on Bootstrap Barrio, but it can apply to all bootstrap/standard subthemes

I've created a custom Barrio subtheme, let's call it 'orange', and I've created a twig file that allows to display the copyright info without install a module.
The twig code:

<div class="copyright">
&copy; {{ "now"|date("Y") }} {{ site_name }}, {{ "some text" }}, All rights reserved.
</div>

Hi,

I'm trying to expand the range of html tags that can be used in the 'Help Text' for fields. I’d like this to be applied to all fields.

I've been trying to use a D7 example and updating for D8/9, but I'm running into problems. This has led me to a lot of API stuff, that I'm not fully sure I'm understanding.

Here's what I've got:

I'm trying to inspect the $variables that is available to a preprocess function, e.g.:

function mytheme_preprocess_node(&$variables) {
  debug($variables);
  ...
}

It doesn't work (site just crash).  Also tried dpm() and kint() with no luck. Google told me that others also struggle with this., but found nothing that actually worked.