In the variants.css file

Can you please share file and spot of these hue values?

No, you'd need to change them manually.
Currently they have different hue values to change the color.

Diego, is there easy way to change set of predefined colors?

That you should NOT use two urls, you'll have issues with the forum itself, not just the theme.
I'd suggest adding a redirect rule to your htaccess file.

See this: https://www.simplemachines.org/community/index.php?topic=584807.msg4143593#msg4143593

Diego, what can be a reason for such issue:
Forum without WWW subdomain, I see Repulse boards read/unread icons fine:



But with WWW I see this instead:

Thanks, it worked. 

I just set  Logo URL to {forumurl}/Themes/default/images/logo.png and kaboom.

And before that I set to:

Quote from: flash_os on December 03, 2023, 04:42:14 PMRight after I set Logo URL on Repulse Theme I started to get theme_template_error on every page of my SMF 2.1.4

Can't reproduce this issue.

Quote from: flash_os on December 03, 2023, 04:42:14 PMHow to swap back to default SMF Theme without rebuild it?

{forumurl}/index.php?theme=1

 Right after I set Logo URL on Repulse Theme I started to get theme_template_error on every page of my SMF 2.1.4
 

How to swap back to default SMF Theme without rebuild it?
 

same as above