Calendar Plugin | Color "today" in e.g. red does not work

Things I have tried

What I’m trying to do

Hi, I installed the Things Theme for Obsidian and the Calendar Plugin. In dark mode it is very hard to “spot” the today “number” in the calendar. I figured out that the author of the Calendar Plugin allows for CSS-overrides e.g. for the background color of today. So I created a css snippet and placed the following code into it.

#calendar-container {
–color-text-heading: lightblue; /* var(–text-muted); /
–color-text-today: red; /
var(–interactive-accent); /
–color-text-weeknum: orange; /
var(–text-muted); */
}

The colors for heading and weeknum are shown. The color for today did not change. Did I miss something or is this a bug?

Thank you for your support!