| Core chart types | Native | Bar, line, area, pie & donut, scatterplot & bubble, boxplot, funnel, sankey, heatmap, KPI, table, single record, maps, markdown tile, AI summary — fifteen types, each with its own documentation page. |
| Pivot tables | Native | Not a separate type — it's the Table viz with fields dragged into a Pivots section. |
| Combo (bar + line) | Native | Not a chart type either. Each series independently picks bar, line, scatter or area. |
| Dual / secondary axis | Native | Series are assignable to a left or right Y-axis. Powers ideas 01, 04 and 06. |
| Stacking modes | Native | Automatic, Stack, Group, Overlay and Stack % (100%). Group is bar-only. |
| Reference lines | Limited | Available on both axes, but Omni's docs call the configuration limited and suggest a table calculation for anything complex. |
| Trellis / small multiples | Shipped, undocumented | Generally available per the changelog, with sorting and independent scales — but no doc page exists, so coverage across chart types is unverified. |
| Trendlines | Native | Moving average and regression under a per-series Analytics tab. Note: R² and the formula can't be displayed. |
| Conditional formatting | Native | Row/column rules plus gradient colour scales with pinned min, mid and max. |
| In-cell bars in tables | Native | Numeric columns render as bars, auto-scaled or fixed. Powers idea 08. |
| Sparklines | KPI only | Available as a KPI chart component. Not a table column option — a sparkline inside a table needs a Markdown viz. |
| Period-over-period | Supported | Via KPI comparison components and dashboard controls. No dedicated doc page — don't point anyone at one. |
| Waterfall · gantt · gauge · bullet · sunburst · word cloud | Vega-Lite | Not native, but all have worked example specs in Omni's custom-visualization gallery. |
| Histogram | Via binning | No histogram type and no Vega example. Achievable as a bar chart over a binned dimension. |
| Treemap | Unverified | No type page, no changelog entry, no Vega example. A demo title mentions it. I would not promise one. |
| Time-series bar charts | Gotcha | Bar X-axes are ordinal, so missing dates simply don't plot. Fill missing data explicitly or use a line. |
| Custom Vega-Lite editor | Two costs | Opening the advanced editor breaks the existing visualization (copy the query first) and disables drill-down. Specs don't auto-save. |