https://github.com/wa0x6e/cal-heatmap
Could show one color for having opened at least one chart and a different color for did they take the desired action.
https://levelup.gitconnected.com/how-to-create-a-tracker-like-the-github-contribution-graph-with-node-js-and-google-sheets-5e915c668c1
https://github.com/austenc/habitgrid
→ This looks like what we’re looking for: https://github.com/MohamedKiouaz/LoopHabitTrackerVisualisation Reverse Engineer: https://github.com/Darakah/obsidian-activity-history dig into JS heatmaps
Time-series calendar heatmaps / date heatmaps https://www.vertex42.com/ExcelTemplates/calendar-chart.html https://developers.google.com/chart/interactive/docs/gallery/calendar ← CC: Attribution 4.0