Topic: Drop down of product category

Hello,

1) Theme Options > Typography > Menu > Menu 2 level.
2) Please check the structure of your mobile menu – http://prntscr.com/ln05ne

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Please clear cache and check one more time.

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Theme Options > Menu > Menu styling > Dropdown options > Dropdown background.
Theme Options > Typography > Menu > Menu 2 level > Font Color.

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Please change this custom css code https://prnt.sc/ln6h60 to https://prnt.sc/ln6ho8

.header .menu-wrapper li > a:hover,
.fixed-header .menu-wrapper li > a:hover{
    opacity:.6;
}
.header .menu-wrapper li.current-menu-item > a,
.fixed-header li.current-menu-item > a{
    opacity:.6;
}

Current styles for bg and font are the default and come from dark.css.
This http://prntscr.com/ln6ja5 can be changed via Theme Options > Menu > Menu styling > Dropdown options > Dropdown background.
To change this http://prntscr.com/ln6jys go to Theme Options > Typography > Menu > Menu 2 level > Font Color.

Regards