Overlay filters on map to make them more visible
Make legend placement dynamic
Experiment with highlighting selected city
Minor optimizations
One step forward, one step back
reduced opacity and area of bubbles
sorting disabled bubbles correctly
Fix timezones
Fix text wrapping in overview; enhanced polarPlot line styles
Make mean more prominent during overlap with axis
More prominent yet...
Add basic auto-zooming
Minor refactor and less auto-zoom
Memoize the data before time filtering and use that data for finding visible range
Finalize autozooming
Comment the autozooming code while I still understand it
Unmemoize one function...
adding style for temporarily hiding attacks
reducing opacity of circles on mouseover
reduced stroke width