Just pushed version 2.1.0 of Tacere to the Google Play Store. https://play.google.com/store/apps/details?id=org.ciasaboark.tacere
This release includes a Material Design refresh, many bug fixes/speed improvements, and includes some additional features:
-select calendars to sync
-set a default ringer for each calendar
-share settings for each instance of a repeating event
The additional features require the Pro version of the app (an in-app purchase, or available to anyone that bought the previous donation key).
I also threw in some beta settings to configure some finer details, but the switch to enable these is hidden.
If the release goes well I’ll see about adding one or more home screen widgets, and possibly adding support for location based silencing.