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[Fix] Support trace-specific color sequences in Plotly Express via templates #5437

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Merged
emilykl merged 13 commits into from
Dec 5, 2025
+75 −3
Merged

[Fix] Support trace-specific color sequences in Plotly Express via templates #5437

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965b3bd
Add trace-specific color sequence support from template.data
antonymilne Nov 26, 2025
83faec8
Support trace-specific color sequences in Plotly Express via templates
antonymilne Nov 26, 2025
7bdec7f
Add trace-specific color sequences in Plotly Express via templates
antonymilne Nov 26, 2025
befea7d
Minor
antonymilne Nov 27, 2025
d578ab4
Format code with ruff
antonymilne Nov 27, 2025
a2dc490
Add CHANGELOG entry for trace-specific color sequences fix
antonymilne Dec 1, 2025
74543f3
Update changelog
antonymilne Dec 1, 2025
675c668
Refactor trace-specific color handling in apply_default_cascade
antonymilne Dec 4, 2025
c24b05c
Remove redundant color_discrete_sequence check in apply_default_cascade
antonymilne Dec 4, 2025
076ff14
Update tests/test_optional/test_px/test_px.py
antonymilne Dec 4, 2025
a3853d2
Ruff
antonymilne Dec 4, 2025
af1546c
Merge branch 'main' into main
antonymilne Dec 4, 2025
e8339e0
Fix imshow
antonymilne Dec 5, 2025
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Update tests/test_optional/test_px/test_px.py 
Co-authored-by: Emily KL <[email protected]>
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@antonymilne @emilykl
antonymilne and emilykl authored Dec 4, 2025
commit 076ff14c0de942f5a0cf9979075592c181d41f7a
22 changes: 13 additions & 9 deletions tests/test_optional/test_px/test_px.py
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Expand Up @@ -233,15 +233,19 @@ def test_px_templates_trace_specific_colors(backend):

# trace-specific colors: each trace type uses its own template colors
template = {
"data_histogram": [
{"marker": {"color": "orange"}},
{"marker": {"color": "purple"}},
],
"data_bar": [
{"marker": {"color": "red"}},
{"marker": {"color": "blue"}},
],
"layout_colorway": ["yellow", "green"],
"data": {
"histogram": [
{"marker": {"color": "orange"}},
{"marker": {"color": "purple"}},
],
"bar": [
{"marker": {"color": "red"}},
{"marker": {"color": "blue"}},
],
},
"layout": {
"colorway": ["yellow", "green"],
},
}
# histogram uses histogram colors
fig = px.histogram(tips, x="total_bill", color="sex", template=template)
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