Rolling average weight graphs (a la Hacker's Diet / TrendWeight)
First: I love everything about Cronometer. For real. It's an incredible app and I think the whole CM team has done amazing work.
However, the weight charts (both in Trends and in the sidebar in the Diary) just display data points with a best-fit line. The Diary in particular also shows your weight delta as the raw difference between the oldest and newest measurements in that time frame.
It seems way more in line with CM's precision and data-focused approach to instead use rolling averages to get a more accurate picture of weight trends and to ignore the day-to-day noise of weight fluctuations. (More details here, from the Hacker's Diet: https://www.fourmilab.ch/hackdiet/e4/.)
I'm currently supplementing CM with TrendWeight, which is an automagic weight trend tracker: https://trendweight.com I would love to literally just embed TW's graph into CM or have the same functionality built-in.