I need to present categories in the sidebar in a hierarchical way. Like this:
Category 1 - Sub-category 1 - Sub-category 2 Category 2 - Sub-category 3 - Sub-category 4
The problem is that only the default theme shows categories like that. All the other themes I have tried show categories in the same level even if they are sub categories. For example:
Category 1 Sub-category 1 Sub-category 2 Sub-category 3 Category 2 Sub-category 4
How can I make any theme to show categories in a hierarchical way?
Thanks in advance.