dosubot[bot] commented on issue #33836: URL: https://github.com/apache/superset/issues/33836#issuecomment-2989492653
<!-- Answer --> Directly setting custom colors and a fixed category order for ECharts Bar Charts in Superset 4.1.1 isn’t fully supported through the UI. The “Color Scheme” option lets you pick a palette, but not assign specific colors to specific values. Similarly, category order is controlled by sorting options (like alphabetical or by value), but not by a manual list. If you have admin access and can edit config files, you can define a custom color scheme in your `EXTRA_CATEGORICAL_COLOR_SCHEMES` in `superset/config.py` to match your desired colors. However, this will only set the color sequence, not map colors to specific values. For per-value color mapping, Superset’s codebase uses the `CategoricalColorNamespace.setColor()` method, but this isn’t exposed in the UI—using it would require a code change or a custom plugin. More details on this approach are in the [source code](https://github.com/apache/superset/blob/93583220a7aa4debeaf3fd4a6cade9f771ee8c2f/superset-frontend/packages/superset-ui-core/src/color/CategoricalColorNamespace.ts) and [config example](https://github.com/apache/superset/blob/93583220a7aa4debeaf3fd4a6cade9f771ee8c2f/superset/config.py). For category order, the ECharts Bar Chart plugin supports sorting by value or name, but not by a custom list. Workarounds include manipulating your dataset or using a CASE statement to prefix values for sorting, but there’s no UI field for explicit order. The relevant logic is in the [series sorting code](https://github.com/apache/superset/blob/93583220a7aa4debeaf3fd4a6cade9f771ee8c2f/superset-frontend/plugins/plugin-chart-echarts/src/utils/series.ts). If you need full control, consider the Plotly plugin for Superset, which lets you write Python code for custom charts—including explicit color and order mapping. See [this discussion](https://github.com/apache/superset/discussions/32756) for details. For more on customizing chart colors, check out the [Customizing Chart Colors with Superset & Preset](https://preset.io/blog/customizing-chart-colors-with-superset-and-preset/) blog post. Let me know if you want more details on any of these approaches! <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/cde23659-a05b-4541-b4bb-f4cf0e50ff18?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/cde23659-a05b-4541-b4bb-f4cf0e50ff18?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/cde23659-a05b-4541-b4bb-f4cf0e50ff18?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/cde23659-a05b-4541-b4bb-f4cf0e50ff18?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/cde23659-a05b-4541-b4bb-f4cf0e50ff18?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/cde23659-a05b-4541-b4bb-f4cf0e50ff18?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/cde23659-a05b-4541-b4bb-f4cf0e50ff18?feedback_type=other)</sup> [](https://go.dosu.dev/discord-bot) [! [Share on X](https://img.shields.io/badge/X-share-black)](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/issues/33836) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
