— The graphs jitter on launch.
— The second and the third graphs are slow when filtering.
— Bonus goal is partially implemented (+), however graphs #1-#3 are slow when filtering and scaling while zoom is applied.

– Graphs jitter on launch.
– The app crashes after zooming 6.04.2019 on the third chart.
– Filtering the third graph is glitchy (the first video). It is also slow on the last graph.
– Dates performance could be better (the second video).
– Bonus goal is partially implemented (without the pie chart). Zooming in is slow on the graphs #1-#3.

STABLE crash on attempt to open 6 april in #3 chart

Sometime it's impossible to select date near edge

There are visible white lines between the Apples and Oranges areas in graph #5. Filtering graph #5 when maxed out is slow (low fps). Graphs of their parts can disappear when switching day/night mode.

Lines unexpectedly shakes (like a noise) when enable/disable

Width of stacked bar shakes when enable/disable.

The date label is stretched.

Charts rebuilds & animated when switch theme

No animation for grid lines / Y-values

The app interacts with user / starts every animation with noticeable delay (I suppose that it's because of background rendering/model rebuild, but not sure). Not sure video reflects it, but when you use the app, you feel it.
AND because it uses background thread, and posted invalidate events from it only when model is ready to draw, I can't prove the bad perf & not smooth animations by screenshot with bars, but again it noticeable when you use it.

White lines in stacked bar

Night switch produces artifacts on percentage graph