A actor/token portrait box, which is shown on token hover.

You can change the shape of the portrait box via svg mask.

The position of the box can be set to top-left, top-right, bottom-right, bottom-left. You can change the distance from horizontal and vertical border via css string (var's and calc allowed).

You can animate the fade-in and fade-out.

For more information about possible animations see https://animate.css

You can add a CSS-Filter like sepia(0.8) to change the style of the displayed portraits globally.

More information about CSS-Filter see https://www.w3schools.com/cssref/css3_pr_filter.php