Theme development

I'm getting this error when I add and execute the code below in the development.services.yml file to enable twig debugging.

parameters:
twig.config:
debug : true
auto_reload: true
cache: false
 

The error is:

Pretty new to Drupal ecosistem. Fell in love with Olivero theme and I want to make some visual changes like changing the accent color. If someone could help, how it can be done? I am accustomed with plain css, compiling less/sass, and with custom css files. Here I see none of them to figure out. Also I see teasers of Olivero with multiple color palettes. This could be a future implemented feature or do I have to install a module for it?

Thank you in advance.

Hello,

We have a website in Drupal 7.

All things are working fine but we have an issue with media queries for making website responsive.

Other all CSS working fine from same file but media queries not working.

@media only screen and (max-width: 414px) {
 
}

------------------------

@media screen and (max-width: 414px) {

}

We have tried both media queries pattern but CSS is not working under these media queries.

Please help to solve this issue.

Can someone provide a clear example of how to access styles from themename.libraries.yml? I want my theme to include:

"https://cdn.jsdelivr.net/npm/bulma@0.9.1/css/bulma.min.css".

I understand something like this should work:

css:
base:
https://cdn.jsdelivr.net/npm/bulma@0.8.2/css/bulma.min.css:
type: external
minified: true

But don't know the exact format.

Hello everybody,

i use Drupal 9 with Mailsystem Module & SMTP Module

i want to customize the Mail-Templates after the registration, but i don't find nothing about the file-name-suggestion and fields to set in the template, how can i customize this email-templates with my custom html/css code?

Thanks in advance!

I am using an adaptivetheme which renders unpublished nodes using an unpublished class. I am a novice at Drupal theming, and am trying to reuse the theming approach in a subtheme (at-doubleq), which colorizes the entire node rendering, and centers the word 'unpublished' at the top of the content. I can use developer tools to confirm that I am in the right place, as the relevant html has: