Welcome. Foreground reads your calendar and keeps the current task in front of you. Two things to set up: allow calendar access, then pick which calendars count.
Calendar
Pick the calendars that hold your tasks. None picked means all of them.
Lets the auto theme see whether the window behind the timer is light or dark. Without it, only the wallpaper counts.
Time log Pro
Reclaim Pro
If you plan in Reclaim, paste an API key and Start / Done here log there too.
Todoist Pro
Paste an API token and your Todoist tasks for today show in the picker. Done checks them off there.