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[Bug]: fig.colorbar() requires plt.cm.ScalarMappable() object instead of matplotlib.colors.ListedColormap() as it lacks .get_cmap()

Documentation

topic: color/color & colormaps

Status: Open.

#31178 In matplotlib/matplotlib;

· mmokrejs opened on Feb 19, 2026

[BUG]: <code>plt.show()</code> window too small with screen scaling and <code>TkAgg</code> backend

GUI: tk

Maintenance

Status: Open.

#31177 In matplotlib/matplotlib;

· SuperCowProducts opened on Feb 19, 2026

[ENH]: mutation_aspect for Round BoxStyle type

first-contribution

New feature

Status: Open.

#31175 In matplotlib/matplotlib;

· tricarbonate opened on Feb 18, 2026

[MNT]: <code>plt.show()</code> with <code>plt.style.use('dark_background')</code> leaves toolbar 'in light mode' when using <code>TkAgg</code> backend

Maintenance

Status: Open.

#31174 In matplotlib/matplotlib;

· SuperCowProducts opened on Feb 18, 2026

Make downloading pre-built PDF docs easier

Documentation

first-contribution

Status: Open.

#31173 In matplotlib/matplotlib;

· SuperCowProducts opened on Feb 18, 2026

[MNT]: Adopt Scikit Learn's autoclose bot

Maintenance

Status: Open.

#31164 In matplotlib/matplotlib;

· story645 opened on Feb 15, 2026

[Bug]: Initial save ignores text in a figure with constrained layout

Documentation

status: confirmed bug

topic: geometry managerLayoutEngine, Constrained layout, Tight layoutLayoutEngine, Constrained layout, Tight layout

Status: Open.

#31147 In matplotlib/matplotlib;

· smith2936 opened on Feb 13, 2026

[Bug]: Cannot properly set transform for polar axes spine

status: needs clarificationIssues that need more information to resolve.Issues that need more information to resolve.

Status: Open.

#31136 In matplotlib/matplotlib;

· williamlus opened on Feb 12, 2026

[Doc]: quiver documentation states "mid" as argument for pivot however it does not work

Documentation

first-contribution

status: needs clarificationIssues that need more information to resolve.Issues that need more information to resolve.

topic: mplot3d

Status: Open.

#31127 In matplotlib/matplotlib;

· MEMAndersen opened on Feb 10, 2026

[Bug]: FigureCanvasTkAgg renders clipped/oversized when embedded in layout-managed container on Windows HiDPI

first-contribution

GUI: tk

topic: dpi and resolution

Status: Open.

#31126 In matplotlib/matplotlib;

· lzz8246 opened on Feb 10, 2026

[ENH]: Give control whether twinx() or twiny() overlays the main axis

first-contribution

New feature

Status: Open.

#31122 In matplotlib/matplotlib;

· GiusCappelli opened on Feb 9, 2026

[MNT]: verbose toggle for CI

Maintenance

Status: Open.

Task

#31120 In matplotlib/matplotlib;

· story645 opened on Feb 8, 2026