Add rcParams for figure.suptitle() kwargs (x, y, horizontalalignment, verticalalignment)#31889

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szzhoujiarui-sketch wants to merge 16 commits into

matplotlib:mainfrom

szzhoujiarui-sketch:fix/24090-suptitle-rcparams

Commits on Jun 13, 2026

feat(figure): add rcParams for suptitle/suplabel position and alignment
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feat(rcsetup): add validators for figure title/label position and alignment rcParams
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feat(config): add default rcParams for figure title/label position and alignment
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test(figure): add tests for suptitle/suplabel rcParams
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fix(figure): add :rc: role to va default in _suplabels docstring
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fix(figure): add :rc: role to va default in _suplabels docstring
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feat(rcsetup): add _Param entries for figure title/label position and alignment rcParams
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refactor(figure): only add rcParams for suptitle, keep supxlabel/supylabel with literal defaults
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refactor(rcsetup): only add rcParams validators for suptitle position and alignment
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refactor(config): only add rcParams for suptitle position and alignment
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refactor(test): only test suptitle rcParams, remove supxlabel/supylabel tests
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fix(rcsetup): restore from upstream, add only suptitle rcParams
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feat(rcsetup): add _Param entries for figure.title_x/y/ha/va
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Commits on Jun 14, 2026