Pyrrah

There is a problem in the last version, bug is not fixed.
Here is the solution :

1) Search and clear the line (~1114):

#adminmenu .wp-submenu ul {
background-color: #fff
}

2) Just below the previous line in 1), replace by:

#adminmenu .wp-submenu-wrap, #adminmenu .wp-submenu ul {
border-color: #HEXA_SCRIPT_CSS;
background-color: #fff
}

Now, problem fixed.
Thanks for this plugin 🙂