Hello,
i have just instaled sweethome 3D 7.1 on my computer.
I have exactly followed the instruction of this link which is linked on the official download page.
I have currently these 2 issues:

1. the software interface menus are very big (see areas 1,2 and 3 on the picture) compared to the rest of the interface, i mean the menu icons: . The zoom-in and out icons doesn't change anything here. How can i improve this situation?
2. when i double click on a .sh3d file, sweethome 3D does not start. The archive software starts. doing "righ-click > open with > other application" lists all my application, but SH3D does not appear in that list.
   However, SH3D is installed and can be started via the applications menu
   [/list=1]. How can i resolve this?
   
   Many thanks in advance for your help,
   
   OS: Linux Elementary OS 6.1 (fork of Linux Ubuntu)