# Formatting & theming

> Format numbers, set legends and value labels, and brand your charts with an org color theme or a per-chart palette.

*[View this page in the Flax docs](https://flax-analytics.com/docs/visualizations/formatting-and-theming)*

This page covers how numbers appear on your charts and how you brand chart colors —
per chart and across your whole organization.

## Number formatting

Each chart has a **Format** control that sets how values render on axes, tooltips,
and labels:

| Style | Example | Notes |
| --- | --- | --- |
| `number` | 900,000.00 | Standard grouped number. |
| `plain` | 900 000 | Space-grouped, no decimals. |
| `compact` | 1.23M / 123k | Three significant figures by magnitude. |
| `currency` | $1,234.00 | ISO currency code (default USD). |
| `percent` | 12.3% | Share as a percentage. |

For `number`, `currency`, and `percent` you can set **decimals** from 0 to 4.
`plain` and `compact` use fixed precision.

Other display options include **legend** position (top, bottom, left, right, or
hidden) and **Show numbers**, which draws value labels on bars, line points, area
series, pie slices, box-plot medians, and funnel steps. You can also enable labels
on individual series only.

## Chart colors

Chart color is layered, most specific wins:

1. **Per-chart palette** — a "Colors" control in the chart editor sets an explicit
   palette for that one chart, overriding the org theme. Clear it to inherit again.
2. **Org chart theme** — the workspace default (see below).
3. **Built-in default** — the "Flax" palette, which is colorblind-safe.

## Org-level chart theme

An organization can set a chart theme so every chart matches your brand, in both
light and dark mode. Configure it under **Appearance** (`/app/settings/appearance`,
"Chart theme"):

- Pick a **preset** — Flax (default), vibrant, cool, warm, or grayscale — each with
  tuned light and dark palettes.
- Or author a **custom** palette of hex colors (minimum two), with a live preview.

> [!IMPORTANT]
> Saving the org chart theme is admin-only. Every member's charts render with the
> saved theme so the workspace stays consistent. Custom hex colors apply to both
> light and dark mode as entered; presets are tuned per mode.

## Next steps

- [Chart types](/docs/visualizations/chart-types) — pick the right chart.
- [Organization settings](/docs/administration/organization) — workspace-wide configuration.