Great job! Is there any way that in the future you could add an end-game stats page for items (like the one for runes)? I like seeing the stats while in the game but I feel like it would be a lot more usefull after the game so we can compare diffenrent items/builds easier. A lot of the time I forget to check cause I'm focussed on playing so it's harder to keep track of the stats while in game.
Maybe someday; it's harder than you'd think as the dynamic tooltips are currently only in game (and in inventories/scoreboard). So it would take much more work than just me (league client and game engineering) to make it work.
With that said, you can look at your tracker data in the replay! If you open up a replay and highlight your tooltip in the scoreboard you can see the tracker.