May 17, 2025 · May 15, 2025
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
                    'zorder', 'rasterized'):
            if key in kwargs:
                eb_cap_style[key] = kwargs[key]
        eb_cap_style['color'] = ecolor
        eb_cap_style["markeredgecolor"] = ecolor

        barcols = []
        caplines = {'x': [], 'y': []}
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
    ax_test.set_position([0.25, 0.25, 0.5, 0.5])
    assert (bbox.x0, bbox.y0, bbox.width, bbox.height) == (0.0, 0.0, 1.0, 1.0)
    ax_ref = fig_ref.add_axes([0.25, 0.25, 0.5, 0.5])


 def test_caps_color():
    # Creates a simple plot with error bars and a specified ecolor
    x = np.linspace(0, 10, 10)
    mpl.rcParams['lines.markeredgecolor'] = 'green'
    ecolor = 'red'

    fig, ax = plt.subplots()
    errorbars = ax.errorbar(x, np.sin(x), yerr=0.1, ecolor=ecolor)

    # Tests if the caps have the specified color
    for cap in errorbars[2]:
        assert mcolors.same_color(cap.get_edgecolor(), ecolor)


 def test_caps_no_ecolor():
    # Creates a simple plot with error bars without specifying ecolor
    x = np.linspace(0, 10, 10)
    mpl.rcParams['lines.markeredgecolor'] = 'green'
    fig, ax = plt.subplots()
    errorbars = ax.errorbar(x, np.sin(x), yerr=0.1)

    # Tests if the caps have the default color (blue)
    for cap in errorbars[2]:
        assert mcolors.same_color(cap.get_edgecolor(), "blue")
Original file line number	Diff line number	Diff line change
Expand Up		@@ -3780,7 +3780,7 @@ def _upcast_err(err):
		'zorder', 'rasterized'):
		if key in kwargs:
		eb_cap_style[key] = kwargs[key]
		eb_cap_style['color'] = ecolor
		eb_cap_style["markeredgecolor"] = ecolor

		barcols = []
		caplines = {'x': [], 'y': []}
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -9618,3 +9618,29 @@ def test_axes_set_position_external_bbox_unchanged(fig_test, fig_ref):
		ax_test.set_position([0.25, 0.25, 0.5, 0.5])
		assert (bbox.x0, bbox.y0, bbox.width, bbox.height) == (0.0, 0.0, 1.0, 1.0)
		ax_ref = fig_ref.add_axes([0.25, 0.25, 0.5, 0.5])


		def test_caps_color():
		# Creates a simple plot with error bars and a specified ecolor
		x = np.linspace(0, 10, 10)
		mpl.rcParams['lines.markeredgecolor'] = 'green'
		ecolor = 'red'

		fig, ax = plt.subplots()
		errorbars = ax.errorbar(x, np.sin(x), yerr=0.1, ecolor=ecolor)

		# Tests if the caps have the specified color
		for cap in errorbars[2]:
		assert mcolors.same_color(cap.get_edgecolor(), ecolor)


		def test_caps_no_ecolor():
		# Creates a simple plot with error bars without specifying ecolor
		x = np.linspace(0, 10, 10)
		mpl.rcParams['lines.markeredgecolor'] = 'green'
		fig, ax = plt.subplots()
		errorbars = ax.errorbar(x, np.sin(x), yerr=0.1)

		# Tests if the caps have the default color (blue)
		for cap in errorbars[2]:
		assert mcolors.same_color(cap.get_edgecolor(), "blue")