he primary color */
        --body-bg-color:rgb({{ primary_color }}); /* background around pdf, sets also sidebar color!*/
        --sidebar-narrow-bg-color:rgb({{ primary_color }}); /* sidebar background around pdf mobile*/
        --treeitem-bg-color:rgb({{ primary_color }});   ;  /* table of contents bg color */
        --treeitem-selected-bg-color:rgb({{ primary_color }});  /* table of contents selected bg color */
        --scrollbar-bg-color:rgb({{ primary_color }});  /* scrollbar background color */
