I see. Can you try adding this CSS?:
.menu-bar-items .menu-bar-item a svg {
filter: drop-shadow(-1px 3px 1px #1A1423CC);
}
.menu-bar-items .menu-bar-item span:is(.number-of-items, .amount) {
text-shadow: -1px 3px 1px #1A1423;
}
This should add the text and drop shadows necessary.
You may alter the values to your preference.