.tag-unread { font-weight: bold; } 
.tag-spam { display: none; opacity: 10%; } 
.tag-account-ucla { color: cyan; }
.tag-account-mehtank { color: orange; }
.tag-account-berkeley { color: yellow; }

@media (prefers-color-scheme: light) {
    .tag-account-ucla { color: #008; }
    .tag-account-mehtank { color: #f53; }
    .tag-account-berkeley { color: #c90; }
}