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DOC: Discouraged duplicate colormaps by timhoffm · Pull Request #30814 · matplotlib/matplotlib · GitHub

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DOC: Discouraged duplicate colormaps #30814

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Merged
rcomer merged 1 commit into from
Dec 7, 2025
Conversation 0 Commits 1 Checks 19 Files changed
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DOC: Discouraged duplicate colormaps #30814

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21 changes: 18 additions & 3 deletions galleries/examples/color/colormap_reference.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,9 +24,8 @@
'YlOrBr', 'YlOrRd', 'OrRd', 'PuRd', 'RdPu', 'BuPu',
'GnBu', 'PuBu', 'YlGnBu', 'PuBuGn', 'BuGn', 'YlGn']),
('Sequential (2)', [
'binary', 'gist_yarg', 'gist_gray', 'gray', 'bone', 'pink',
'spring', 'summer', 'autumn', 'winter', 'cool', 'Wistia',
'hot', 'afmhot', 'gist_heat', 'copper']),
'gray', 'bone', 'pink', 'spring', 'summer', 'autumn', 'winter',
'cool', 'Wistia', 'hot', 'afmhot', 'gist_heat', 'copper']),
('Diverging', [
'PiYG', 'PRGn', 'BrBG', 'PuOr', 'RdGy', 'RdBu',
'RdYlBu', 'RdYlGn', 'Spectral', 'coolwarm', 'bwr', 'seismic',
Expand Down Expand Up @@ -70,6 +69,22 @@ def plot_color_gradients(cmap_category, cmap_list):


# %%
#
# .. admonition:: Discouraged
#
# For backward compatibility we additionally support the following colormap
# names, which are identical to other builtin colormaps. Their use is
# discouraged. Use the suggested replacement instead.
#
# ========= =================================
# Colormap Use identical replacement instead
# ========= =================================
# gist_gray gray
# gist_yarg gray_r
# binary gray_r
# ========= =================================
#
#
# .. _reverse-cmap:
#
# Reversed colormaps
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21 changes: 18 additions & 3 deletions galleries/users_explain/colors/colormaps.py
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Original file line number Diff line number Diff line change
Expand Up @@ -161,11 +161,26 @@ def plot_color_gradients(category, cmap_list):
# an excellent example of this).

plot_color_gradients('Sequential (2)',
['binary', 'gist_yarg', 'gist_gray', 'gray', 'bone',
'pink', 'spring', 'summer', 'autumn', 'winter', 'cool',
'Wistia', 'hot', 'afmhot', 'gist_heat', 'copper'])
['gray', 'bone', 'pink', 'spring', 'summer', 'autumn',
'winter', 'cool', 'Wistia', 'hot', 'afmhot', 'gist_heat',
'copper'])

# %%
# .. admonition:: Discouraged
#
# For backward compatibility we additionally support the following colormap
# names, which are identical to other builtin colormaps. Their use is
# discouraged. Use the suggested replacement instead.
#
# ========= =================================
# Colormap Use identical replacement instead
# ========= =================================
# gist_gray gray
# gist_yarg gray_r
# binary gray_r
# ========= =================================
#
#
# Diverging
# ---------
#
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