matplotlib · QuLogic · Mar 31, 2025 · Mar 28, 2025 · Apr 9, 2025 · Mar 27, 2025
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -20,13 +20,13 @@ repos:
       - id: check-docstring-first
         exclude: lib/matplotlib/typing.py  # docstring used for attribute flagged by check
       - id: end-of-file-fixer
-        exclude_types: [svg]
+        exclude_types: [diff, svg]
       - id: mixed-line-ending
       - id: name-tests-test
         args: ["--pytest-test-first"]
       - id: no-commit-to-branch  # Default is master and main.
       - id: trailing-whitespace
-        exclude_types: [svg]
+        exclude_types: [diff, svg]
   - repo: https://github.com/pre-commit/mirrors-mypy
     rev: v1.15.0
     hooks:

diff --git a/extern/meson.build b/extern/meson.build
@@ -13,11 +13,20 @@ else
   # must match the value in `lib/matplotlib.__init__.py`. Also update the docs
   # in `docs/devel/dependencies.rst`. Bump the cache key in
   # `.circleci/config.yml` when changing requirements.
-  LOCAL_FREETYPE_VERSION = '2.6.1'
+  LOCAL_FREETYPE_VERSION = '2.13.3'
 
   freetype_proj = subproject(
     f'freetype-@LOCAL_FREETYPE_VERSION@',
-    default_options: ['default_library=static'])
+    default_options: [
+      'default_library=static',
+      'brotli=disabled',
+      'bzip2=disabled',
+      'harfbuzz=disabled',
+      'mmap=auto',
+      'png=disabled',
+      'tests=disabled',
+      'zlib=internal',
+  ])
   freetype_dep = freetype_proj.get_variable('freetype_dep')
 endif
 

diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -1317,7 +1317,7 @@ def _val_or_rc(val, rc_name):
 def _init_tests():
     # The version of FreeType to install locally for running the tests. This must match
     # the value in `meson.build`.
-    LOCAL_FREETYPE_VERSION = '2.6.1'
+    LOCAL_FREETYPE_VERSION = '2.13.3'
 
     from matplotlib import ft2font
     if (ft2font.__freetype_version__ != LOCAL_FREETYPE_VERSION or

diff --git a/lib/matplotlib/_mathtext.py b/lib/matplotlib/_mathtext.py
@@ -9,6 +9,7 @@
 import enum
 import functools
 import logging
+import math
 import os
 import re
 import types
@@ -128,47 +129,62 @@
     def to_vector(self) -> VectorParse:
         w, h, d = map(
             np.ceil, [self.box.width, self.box.height, self.box.depth])
-        gs = [(info.font, info.fontsize, info.num, ox, h - oy + info.offset)
+        gs = [(info.font, info.fontsize, info.num, ox, -oy + info.offset)
               for ox, oy, info in self.glyphs]
-        rs = [(x1, h - y2, x2 - x1, y2 - y1)
+        rs = [(x1, -y2, x2 - x1, y2 - y1)
               for x1, y1, x2, y2 in self.rects]
         return VectorParse(w, h + d, d, gs, rs)
 
     def to_raster(self, *, antialiased: bool) -> RasterParse:
         # Metrics y's and mathtext y's are oriented in opposite directions,
         # hence the switch between ymin and ymax.
-        xmin = min([*[ox + info.metrics.xmin for ox, oy, info in self.glyphs],
-                    *[x1 for x1, y1, x2, y2 in self.rects], 0]) - 1
-        ymin = min([*[oy - info.metrics.ymax for ox, oy, info in self.glyphs],
-                    *[y1 for x1, y1, x2, y2 in self.rects], 0]) - 1
-        xmax = max([*[ox + info.metrics.xmax for ox, oy, info in self.glyphs],
-                    *[x2 for x1, y1, x2, y2 in self.rects], 0]) + 1
-        ymax = max([*[oy - info.metrics.ymin for ox, oy, info in self.glyphs],
-                    *[y2 for x1, y1, x2, y2 in self.rects], 0]) + 1
+        xmin0 = min([*[ox + info.metrics.xmin for ox, oy, info in self.glyphs],
+                     *[x1 for x1, y1, x2, y2 in self.rects], 0])
+        ymin0 = min([*[oy - max(info.metrics.ymax, info.metrics.iceberg)
+                       for ox, oy, info in self.glyphs],
+                     *[y1 for x1, y1, x2, y2 in self.rects], 0])
+        xmax0 = max([*[ox + info.metrics.xmax for ox, oy, info in self.glyphs],
+                     *[x2 for x1, y1, x2, y2 in self.rects], 0])
+        ymax0 = max([*[oy - info.metrics.ymin for ox, oy, info in self.glyphs],
+                     *[y2 for x1, y1, x2, y2 in self.rects], 0])
+        # Rasterizing can leak into the neighboring pixel, hence the +/-1; it
+        # will be cropped at the end.
+        xmin = math.floor(xmin0 - 1)
+        ymin = math.floor(ymin0 - 1)
+        xmax = math.ceil(xmax0 + 1)
+        ymax = math.ceil(ymax0 + 1)
         w = xmax - xmin
-        h = ymax - ymin - self.box.depth
-        d = ymax - ymin - self.box.height
-        image = FT2Image(int(np.ceil(w)), int(np.ceil(h + max(d, 0))))
+        h = max(-ymin, 0)
+        d = max(ymax, 0)
+        image = FT2Image(w, h + d)
 
-        # Ideally, we could just use self.glyphs and self.rects here, shifting
-        # their coordinates by (-xmin, -ymin), but this yields slightly
-        # different results due to floating point slop; shipping twice is the
-        # old approach and keeps baseline images backcompat.
-        shifted = ship(self.box, (-xmin, -ymin))
-
-        for ox, oy, info in shifted.glyphs:
+        for ox, oy, info in self.glyphs:
            ox -= xmin
+            oy -= (-h + info.offset)
             info.font.draw_glyph_to_bitmap(
-                image, int(ox), int(oy - info.metrics.iceberg), info.glyph,
-                antialiased=antialiased)
-        for x1, y1, x2, y2 in shifted.rects:
+                image, ox, oy, info.glyph, antialiased=antialiased)
+        for x1, y1, x2, y2 in self.rects:
+            x1 -= xmin
+            x2 -= xmin
+            y1 -= -h
+            y2 -= -h
             height = max(int(y2 - y1) - 1, 0)
             if height == 0:
                 center = (y2 + y1) / 2
                 y = int(center - (height + 1) / 2)
             else:
                 y = int(y1)
-            image.draw_rect_filled(int(x1), y, int(np.ceil(x2)), y + height)
-        return RasterParse(0, 0, w, h + d, d, image)
+            image.draw_rect_filled(int(x1), y, math.ceil(x2), y + height)
+
+        image = np.asarray(image)
+        while h and (image[0] == 0).all():
+            image = image[1:]
+            h -= 1
+        while d and (image[-1] == 0).all():
+            image = image[:-1]
+            d -= 1
+        return RasterParse(
+            xmin - xmin0, d - ymax0, xmax0 - xmin0, ymax0 - ymin0, d, image)
 
 
 class FontMetrics(NamedTuple):
@@ -421,7 +437,9 @@
             info1 = self._get_info(font1, fontclass1, sym1, fontsize1, dpi)
             info2 = self._get_info(font2, fontclass2, sym2, fontsize2, dpi)
             font = info1.font
-            return font.get_kerning(info1.num, info2.num, Kerning.DEFAULT) / 64
+            return font.get_kerning(font.get_char_index(info1.num),
+                                    font.get_char_index(info2.num),
+                                    Kerning.DEFAULT) / 64
         return super().get_kern(font1, fontclass1, sym1, fontsize1,
                                 font2, fontclass2, sym2, fontsize2, dpi)
 
@@ -1602,7 +1620,7 @@
     cur_v = 0.
     cur_h = 0.
     off_h = ox
-    off_v = oy + box.height
+    off_v = oy
     output = Output(box)
 
     def clamp(value: float) -> float:

diff --git a/lib/matplotlib/backends/backend_agg.py b/lib/matplotlib/backends/backend_agg.py
@@ -180,7 +180,7 @@ def draw_mathtext(self, gc, x, y, s, prop, angle):
         yd = descent * cos(radians(angle))
         x = round(x + ox + xd)
         y = round(y - oy + yd)
-        self._renderer.draw_text_image(font_image, x, y + 1, angle, gc)
+        self._renderer.draw_text_image(font_image, x, y, angle, gc)
 
     def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
         # docstring inherited

diff --git a/lib/matplotlib/backends/backend_pdf.py b/lib/matplotlib/backends/backend_pdf.py
@@ -617,40 +617,18 @@ def _get_pdf_charprocs(font_path, glyph_ids):
     procs = {}
     for glyph_id in glyph_ids:
         g = font.load_glyph(glyph_id, LoadFlags.NO_SCALE)
-        # NOTE: We should be using round(), but instead use
-        # "(x+.5).astype(int)" to keep backcompat with the old ttconv code
-        # (this is different for negative x's).
-        d1 = (np.array([g.horiAdvance, 0, *g.bbox]) * conv + .5).astype(int)
+        d1 = [
+            round(g.horiAdvance * conv), 0,
+            # Round bbox corners *outwards*, so that they indeed bound th glyph.
+            math.floor(g.bbox[0] * conv), math.floor(g.bbox[1] * conv),
+            math.ceil(g.bbox[2] * conv), math.ceil(g.bbox[3] * conv),
+        ]
         v, c = font.get_path()
-        v = (v * 64).astype(int)  # Back to TrueType's internal units (1/64's).
-        # Backcompat with old ttconv code: control points between two quads are
-        # omitted if they are exactly at the midpoint between the control of
-        # the quad before and the quad after, but ttconv used to interpolate
-        # *after* conversion to PS units, causing floating point errors.  Here
-        # we reproduce ttconv's logic, detecting these "implicit" points and
-        # re-interpolating them.  Note that occasionally (e.g. with DejaVu Sans
-        # glyph "0") a point detected as "implicit" is actually explicit, and
-        # will thus be shifted by 1.
-        quads, = np.nonzero(c == 3)
-        quads_on = quads[1::2]
-        quads_mid_on = np.array(
-            sorted({*quads_on} & {*(quads - 1)} & {*(quads + 1)}), int)
-        implicit = quads_mid_on[
-            (v[quads_mid_on]  # As above, use astype(int), not // division
-             == ((v[quads_mid_on - 1] + v[quads_mid_on + 1]) / 2).astype(int))
-            .all(axis=1)]
-        if (font.postscript_name, glyph_id) in [
-                ("DejaVuSerif-Italic", 77),  # j
-                ("DejaVuSerif-Italic", 135),  # \AA
-        ]:
-            v[:, 0] -= 1  # Hard-coded backcompat (FreeType shifts glyph by 1).
-        v = (v * conv + .5).astype(int)  # As above re: truncation vs rounding.
-        v[implicit] = ((  # Fix implicit points; again, truncate.
-            (v[implicit - 1] + v[implicit + 1]) / 2).astype(int))
+        v = (v * 64 * conv).round()  # Back to TrueType's internal units (1/64's).
         procs[font.get_glyph_name(glyph_id)] = (
             " ".join(map(str, d1)).encode("ascii") + b" d1\n"
             + _path.convert_to_string(
-                Path(v, c), None, None, False, None, -1,
+                Path(v, c), None, None, False, None, 0,
                 # no code for quad Beziers triggers auto-conversion to cubics.
                 [b"m", b"l", b"", b"c", b"h"], True)
             + b"f")

diff --git a/lib/matplotlib/mpl-data/matplotlibrc b/lib/matplotlib/mpl-data/matplotlibrc
@@ -301,9 +301,9 @@
 ##                ("native" is a synonym.)
 ## - force_autohint: Use FreeType's auto-hinter.  ("auto" is a synonym.)
 ## - no_hinting: Disable hinting.  ("none" is a synonym.)
-#text.hinting: force_autohint
+#text.hinting: default
 
-#text.hinting_factor: 8  # Specifies the amount of softness for hinting in the
+#text.hinting_factor: 1  # Specifies the amount of softness for hinting in the
                          # horizontal direction.  A value of 1 will hint to full
                          # pixels.  A value of 2 will hint to half pixels etc.
 #text.kerning_factor: 0  # Specifies the scaling factor for kerning values.  This

diff --git a/lib/matplotlib/mpl-data/stylelib/_classic_test_patch.mplstyle b/lib/matplotlib/mpl-data/stylelib/_classic_test_patch.mplstyle
@@ -1,8 +1,9 @@
 # This patch should go on top of the "classic" style and exists solely to avoid
 # changing baseline images.
 
-text.kerning_factor : 6
-
 ytick.alignment: center_baseline
 
 hatch.color: edge
+
+text.hinting: default
+text.hinting_factor: 1
diff --git a/lib/matplotlib/testing/__init__.py b/lib/matplotlib/testing/__init__.py
@@ -19,8 +19,12 @@
 
 def set_font_settings_for_testing():
     mpl.rcParams['font.family'] = 'DejaVu Sans'
-    mpl.rcParams['text.hinting'] = 'none'
-    mpl.rcParams['text.hinting_factor'] = 8
+    if getattr(mpl, '_called_from_pytest', False):
+        mpl.rcParams['text.hinting'] = 'default'
+        mpl.rcParams['text.hinting_factor'] = 1
+    else:
+        mpl.rcParams['text.hinting'] = 'none'
+        mpl.rcParams['text.hinting_factor'] = 8
 
 
 def set_reproducibility_for_testing():

diff --git a/lib/matplotlib/tests/baseline_images/test_agg_filter/agg_filter_alpha.gif b/lib/matplotlib/tests/baseline_images/test_agg_filter/agg_filter_alpha.gif
diff --git a/lib/matplotlib/tests/baseline_images/test_agg_filter/agg_filter_alpha.pdf b/lib/matplotlib/tests/baseline_images/test_agg_filter/agg_filter_alpha.pdf
diff --git a/lib/matplotlib/tests/baseline_images/test_agg_filter/agg_filter_alpha.png b/lib/matplotlib/tests/baseline_images/test_agg_filter/agg_filter_alpha.png
diff --git a/lib/matplotlib/tests/baseline_images/test_arrow_patches/boxarrow_test_image.png b/lib/matplotlib/tests/baseline_images/test_arrow_patches/boxarrow_test_image.png
diff --git a/lib/matplotlib/tests/baseline_images/test_artist/default_edges.png b/lib/matplotlib/tests/baseline_images/test_artist/default_edges.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/axhspan_epoch.png b/lib/matplotlib/tests/baseline_images/test_axes/axhspan_epoch.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/axvspan_epoch.png b/lib/matplotlib/tests/baseline_images/test_axes/axvspan_epoch.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bar_tick_label_multiple.png b/lib/matplotlib/tests/baseline_images/test_axes/bar_tick_label_multiple.png
diff --git a/...tests/baseline_images/test_axes/bar_tick_label_multiple_old_label_alignment.png b/...tests/baseline_images/test_axes/bar_tick_label_multiple_old_label_alignment.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bar_tick_label_single.png b/lib/matplotlib/tests/baseline_images/test_axes/bar_tick_label_single.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/barh_tick_label.png b/lib/matplotlib/tests/baseline_images/test_axes/barh_tick_label.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/boxplot.png b/lib/matplotlib/tests/baseline_images/test_axes/boxplot.png
diff --git a/...matplotlib/tests/baseline_images/test_axes/boxplot_autorange_false_whiskers.png b/...matplotlib/tests/baseline_images/test_axes/boxplot_autorange_false_whiskers.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/boxplot_autorange_true_whiskers.png b/lib/matplotlib/tests/baseline_images/test_axes/boxplot_autorange_true_whiskers.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/boxplot_custom_capwidths.png b/lib/matplotlib/tests/baseline_images/test_axes/boxplot_custom_capwidths.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bxp_baseline.png b/lib/matplotlib/tests/baseline_images/test_axes/bxp_baseline.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bxp_custom_capwidth.png b/lib/matplotlib/tests/baseline_images/test_axes/bxp_custom_capwidth.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bxp_custom_capwidths.png b/lib/matplotlib/tests/baseline_images/test_axes/bxp_custom_capwidths.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bxp_percentilewhis.png b/lib/matplotlib/tests/baseline_images/test_axes/bxp_percentilewhis.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bxp_rangewhis.png b/lib/matplotlib/tests/baseline_images/test_axes/bxp_rangewhis.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bxp_with_xlabels.png b/lib/matplotlib/tests/baseline_images/test_axes/bxp_with_xlabels.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/bxp_with_ylabels.png b/lib/matplotlib/tests/baseline_images/test_axes/bxp_with_ylabels.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/canonical.png b/lib/matplotlib/tests/baseline_images/test_axes/canonical.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/contour_colorbar.pdf b/lib/matplotlib/tests/baseline_images/test_axes/contour_colorbar.pdf
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/contour_colorbar.png b/lib/matplotlib/tests/baseline_images/test_axes/contour_colorbar.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/errorbar_basic.png b/lib/matplotlib/tests/baseline_images/test_axes/errorbar_basic.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/errorbar_limits.png b/lib/matplotlib/tests/baseline_images/test_axes/errorbar_limits.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/errorbar_mixed.png b/lib/matplotlib/tests/baseline_images/test_axes/errorbar_mixed.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/errorbar_zorder.png b/lib/matplotlib/tests/baseline_images/test_axes/errorbar_zorder.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/extent_units.png b/lib/matplotlib/tests/baseline_images/test_axes/extent_units.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/fill_units.png b/lib/matplotlib/tests/baseline_images/test_axes/fill_units.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_001.png b/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_001.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_002.png b/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_002.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_003.png b/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_003.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_004.png b/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_004.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_005.png b/lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_005.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hexbin_log.png b/lib/matplotlib/tests/baseline_images/test_axes/hexbin_log.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_density.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_density.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_offset.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_offset.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_bar.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_bar.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_normed.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_normed.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_step.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_step.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_stepfilled.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_stepfilled.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_stepfilled_alpha.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_stepfilled_alpha.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_weights.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_stacked_weights.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hist_step_horiz.png b/lib/matplotlib/tests/baseline_images/test_axes/hist_step_horiz.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hlines_basic.png b/lib/matplotlib/tests/baseline_images/test_axes/hlines_basic.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hlines_masked.png b/lib/matplotlib/tests/baseline_images/test_axes/hlines_masked.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/hlines_with_nan.png b/lib/matplotlib/tests/baseline_images/test_axes/hlines_with_nan.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/imshow_clip.pdf b/lib/matplotlib/tests/baseline_images/test_axes/imshow_clip.pdf
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/imshow_clip.png b/lib/matplotlib/tests/baseline_images/test_axes/imshow_clip.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/markevery.png b/lib/matplotlib/tests/baseline_images/test_axes/markevery.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/markevery_line.png b/lib/matplotlib/tests/baseline_images/test_axes/markevery_line.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/nonfinite_limits.png b/lib/matplotlib/tests/baseline_images/test_axes/nonfinite_limits.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/o_marker_path_snap.png b/lib/matplotlib/tests/baseline_images/test_axes/o_marker_path_snap.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/offset_points.png b/lib/matplotlib/tests/baseline_images/test_axes/offset_points.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/pcolor_datetime_axis.png b/lib/matplotlib/tests/baseline_images/test_axes/pcolor_datetime_axis.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/pcolormesh_datetime_axis.png b/lib/matplotlib/tests/baseline_images/test_axes/pcolormesh_datetime_axis.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/pie_ccw_true.png b/lib/matplotlib/tests/baseline_images/test_axes/pie_ccw_true.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/pie_center_radius.png b/lib/matplotlib/tests/baseline_images/test_axes/pie_center_radius.png
diff --git a/lib/matplotlib/tests/baseline_images/test_axes/pie_default.png b/lib/matplotlib/tests/baseline_images/test_axes/pie_default.png
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