Tree menu alignment in siteground template

[bramberg]

I have installed and are using the siteground-j15-54 template. I am using a tree menu with two levels. When I click on the parent, the child level is expanded with the children indented. If I then click on one of the children the other children gets a decreased indent (ie back to the same level as the mother element). I would like to have all children menu element to stay at the original indent level (as it is withe the default Joomla ruhk-milkyway template). Is it possible to modify this behaviour and how can it be implemented in the template.

This seems to be a problem with all the siteground templates.

[sava]

This is how the template is intended to behave. I will though report this to our designers, who will consider your offer and probably modify one of the existing ones.