With Doxygen 1.10 and in dark mode, function parameters are dark red/brown and hard to read:

I think doxygen.css added a .paramname em rule that is now winning over the color in doxygen-awesome.css's .paramname rule.

I'm currently working around this with the following custom css:

/* Make '.paramname em' identical to '.paramname'. */
.paramname em {
    font-weight: 600;
    color: var(--primary-dark-color);
}