You can find sidebar class and forum class in the index template. Also, you need to change the sizes in the jQuery code, included in the headerinclude template.
The menu/breadcrumb problem is for the z-index. I will fix this now.
And here we go again, that f***ing word hahah, let me see if there are more untranslated words.
Wait for the fix if you want. If you can't wait, then, wait for the manual solution.
For the plugins... I say on the first page of all my designs that I don't give support for plugins, because, the only way I can create a theme to be 100% compatible with all the plugins, it's to use the default theme and don't change nothing more than colors... So, always you can have a bug, or crash, or whatever.
Greetings, wait for the edit with the manual fix, and thanks for the report!
EDIT:
Manual fix for the menu/breadcrumbs problem:
Go to ACP > Templates & Styles > Styles > Square > global.css
Search ".wrapper-dropdown-5" and replace the existing one with this:
Quote:.wrapper-dropdown-5 {
position: relative;
width: 120px;
margin: auto;
cursor: pointer;
outline: none;
z-index: 999;
}
(The only change was to replace the z-index to a higher number).