By default, the platform does not have this option. You can use the following CSS code which will change the color depending on your preference in the background of the All Updates tab on the Activity page when hovered.
Please follow the steps below:
1. Go to BuddyBoss – Theme Options
2. Under Custom Codes, enable CSS
3. Append the following:
.bp-navs ul:not(.subnav) a:hover {
background-color: red !important;
}
4. Save changes.
Screenshots
Without Code:
With Code: