Leave missing stacked chart pairs empty and fix legend contrast

Rudy Cresporequested to merge
fix/glql-chart-zero-tooltip-and-legend-color into master
  • Stacked GLQL column and bar charts leave pairs with no data empty instead of drawing a zero segment, so their tooltips (for example DAP Impact Sessions over time) no longer list every missing series at 0. Genuine zeros still show.
  • The diverging bar chart legend text uses the theme text colour, so it is readable in dark mode.
Visualization Before After
Diverging Bar Chart Screenshot 2026-09-23 at 8.04.12 PM.png Screenshot 2026-09-23 at 8.01.46 PM.png
Stacked Column Chart Screenshot 2026-09-23 at 8.07.54 PM.png Screenshot 2026-09-23 at 8.37.14 PM.png
Edited by Rudy Crespo

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