Sloppy vertical scrolling when all the graphs are zoomed out to their maximum time ranges.

— Values on Y-axis blink when filtering (the attached video #1).
— Dates on X-axis overlay each other when scaling (the attached screenshot #2).
— Some other glitches appear on the third graph when filtering (the attached video #3).
— The lines on the charts are crispy when scaling (the attached screenshot #4).
– Bonus goal is implemented (+), however parts of expected animations are missing.

First chart: scroll to left, sqeeze maximum to left - have impossible repetetive y-axys values

Can not read percent values

3. No save instance state. Just rotate screen.
4. When preview area is minimized to left it is blocked (video velow). In order to solve problem author should define zone (left, center, right) closer to touch when the gesture starts. Currently - left to right.

Date labels overlap each other.

Poor performance on 1st graph

Poor performance. Changed phone, full charge, no throttling. Need change again? Will do

5. When few lines are checked/unchecked simultaneously - strange flickering effect.

6. Issue. Chart cut abruptly when scrolled. See the right edge or percent chart. Should not be cut at all until the end of chart data.

7. Stack Bar Charts. When data are at the edge first/last bar is not shifted during narrowing preview zone. In order to fix the issues calculated start should be shifted to half of bar width at current scale X

Cannot unselect selection

Poor performance when switching to/from night mode (<3fps)

Slow transition when entering into 4th bonus

Empty data displayed (collapse range selector to minimum, at right side to enter into this state)

For small period of time orange Y axis shows wrong values.

Incorrect histogram under range selector (not occupied full height)

Line blinks if enable & disable it quickly

1. Auto height wrap animation is strange and with long delay (video issue_24).

2. When scrolling fast and leave it be, y line's position is calculated in the wrong way. Also auto height wrap logic breaks from time to time.

Interesting notice: I presume, that this app creator is the winner of the first stage (same icon, same app name).

2a. Video, that proves that screenshots were not taken during the animation.

There is an axis line without any value.

Y-axis labels for the yellow series are changed when the blue series is enabled/disabled (they should be independent).