By default, the platform does not have this option. You can use the following CSS code to change the Profile dropdown username text color. 

Please follow the steps below:

1. Go to BuddyBoss > Theme Options

2. Under Custom Codes, enable CSS

3. Append the following:

.bb-template-v2 .site-header .user-wrap.menu-item-has-children .user-link .user-name {
    color: red;
}

4. Save changes 

Note: Any modifications are considered as custom work already. Know more about our Support policy here: https://www.buddyboss.com/support-policy/