The global styling css file dxpr_theme_subtheme.css is empty and the site has no styling.

Just wondering if we also have to run the following commands as they are not described in the documentation like other bootstrap themes like Barrio do.

npm install 
gulp compile

In current version this issues is resolved.

By current version you mean version 6.0.0? If it is then is it possible to upgrade from 5.2.1 to 6.0.0 or it will need a fresh install.

Yes 6.0.0 you need to fresh install.

Version 6.0.0 is still in beta. Is there anything we could do to resolve the issue in the current version 5.2.1.

I have done a fresh install of DXPR 6.0 as per https://dxpr.com/hc/documentation/learn-dxpr-theme/low-code-theme-custom...

And then added a sub-theme as per https://dxpr.com/documentation/creating-dxpr-theme-drupal-9-subtheme#Use...

And now when viewing /web/themes/custom/company_dxpr_theme/css/ --> the "dxpr_theme_subtheme.css" file is empty. So it does look to me like this bug has not been fixed in 6.0.0 ...

Another thing that's odd is that the custom CSS file name is different than the custom subtheme's machine name. For example, the custom subtheme is named: company_dxpr_theme

And yet the actual CSS file within that directory is called: dxpr_theme_subtheme.css

Shouldn't this be: company_dxpr_theme.css (?)

I don't really have a strong opinion on it, but was thinking maybe this is part of the reason why this bug is happening. At the least, it seems worth mentioning that it *seems* like the custom subtheme's CSS file should be named consistently with the name of the custom subtheme itself.