Our website is capable of detecting the ligth or dark colors, but the the Event calendar will always show with the same color regardless of the scheme.
Hi there, @user35165 
You can manually adjust the widget’s appearance on the Style tab (from background to detailed customization of the event popup elements):
Does it cover your needs, or did you want the widget’s theme to automatically change based on your website’s theme?
I would like the Widget’s theme to automatically change.
Got it, thanks!
Could you please send me a link to the page, where your widget is installed? I’ll be happy to check if it’s feasible 