A couple of small requests for the Tax Analytics > Rate Progression chart:

1. If I hide a certain category listed on the right hand side (e.g. RMDs), and I scroll to another year, the category reappears, forcing me to hide it again. This is distracting when trying to focus on some other metric over time. The sticky show / hide behavior of the categories in the charts above (Income, Taxes, Marginal Rates, Effective Rates) is better.
2. Similarly, if all the relevant categories for a particular plan could be listed permanently, even if they are not in effect for a particular year, that would be useful. Maybe gray them out or desaturate them to indicate they are not in effect instead of having them play peekaboo from year to year.
3. Locking the percentage scaling on the Y-axis so it stays fixed as you scroll through the years would be more intuitive. Currently, in some scenarios, the max Y-value jumps wildly between 5% to 45% and it takes my brain a few cycles to recalibrate each time.
4. Lastly, as I move though the timeline, the X-axis labels (dollar amounts) have a tendency to jump between angled and flat orientation, causing the graph to slosh around a bit visually. I’d be happy with a little less granularity on the bottom labels since the cursor readout is quite precise.

....also adding another vote to expand the X-axis to the left that #fishbert suggested.

Thanks for such a visually beautiful tool!