plotly / plotly/plotly.js

fillcolor opacity attribute

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#3,344 7 comments 10 reactions 0 assignees View on GitHub

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feature P3
Dominant language
JavaScript
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Avg merge
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Merged PRs (30d)
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Description

For filled scatters it would be useful to have the ability to set the opacity of the fill independently of the fillcolor. This would be particularly useful for dash design kit where trace color is updated but the user wants the fill to remain at a given opacity.
cc @chriddyp

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Research direction

The issue names no files or tests. Start by locating the filled-scatter trace entry point and reviewing how fillcolor is propagated; clarify the attribute shape and expected behavior before implementation. Done means filled scatters can keep a chosen fill opacity when trace color is updated, including the Dash design-kit use case.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
data-visualization
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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