diff --git a/test/image/baselines/zz-allowed-range-small.png b/test/image/baselines/allowed-range-small.png
similarity index 100%
rename from test/image/baselines/zz-allowed-range-small.png
rename to test/image/baselines/allowed-range-small.png
diff --git a/test/image/baselines/zz-allowed-range.png b/test/image/baselines/allowed-range.png
similarity index 100%
rename from test/image/baselines/zz-allowed-range.png
rename to test/image/baselines/allowed-range.png
diff --git a/test/image/baselines/zzz-automargin-title-paper-multiline-bottom.png b/test/image/baselines/automargin-title-paper-multiline-bottom.png
similarity index 100%
rename from test/image/baselines/zzz-automargin-title-paper-multiline-bottom.png
rename to test/image/baselines/automargin-title-paper-multiline-bottom.png
diff --git a/test/image/baselines/zz-bar-rounded-corners.png b/test/image/baselines/bar-rounded-corners.png
similarity index 100%
rename from test/image/baselines/zz-bar-rounded-corners.png
rename to test/image/baselines/bar-rounded-corners.png
diff --git a/test/image/baselines/zz-container-colorbar-vertical-w-margin.png b/test/image/baselines/container-colorbar-vertical-w-margin.png
similarity index 100%
rename from test/image/baselines/zz-container-colorbar-vertical-w-margin.png
rename to test/image/baselines/container-colorbar-vertical-w-margin.png
diff --git a/test/image/baselines/zz-heatmap-log-scale.png b/test/image/baselines/heatmap-log-scale.png
similarity index 100%
rename from test/image/baselines/zz-heatmap-log-scale.png
rename to test/image/baselines/heatmap-log-scale.png
diff --git a/test/image/baselines/zz_histogram_overlay-1point-date.png b/test/image/baselines/histogram_overlay-1point-date.png
similarity index 100%
rename from test/image/baselines/zz_histogram_overlay-1point-date.png
rename to test/image/baselines/histogram_overlay-1point-date.png
diff --git a/test/image/baselines/icicle_textposition.png b/test/image/baselines/icicle_textposition.png
index 1c1fbfc12a8..57f5c6e3ca6 100644
Binary files a/test/image/baselines/icicle_textposition.png and b/test/image/baselines/icicle_textposition.png differ
diff --git a/test/image/baselines/zz-insiderange-x-narrow.png b/test/image/baselines/insiderange-x-narrow.png
similarity index 100%
rename from test/image/baselines/zz-insiderange-x-narrow.png
rename to test/image/baselines/insiderange-x-narrow.png
diff --git a/test/image/baselines/zz-insiderange-x.png b/test/image/baselines/insiderange-x.png
similarity index 100%
rename from test/image/baselines/zz-insiderange-x.png
rename to test/image/baselines/insiderange-x.png
diff --git a/test/image/baselines/zz-insiderange-y-narrow.png b/test/image/baselines/insiderange-y-narrow.png
similarity index 100%
rename from test/image/baselines/zz-insiderange-y-narrow.png
rename to test/image/baselines/insiderange-y-narrow.png
diff --git a/test/image/baselines/zz-insiderange-y.png b/test/image/baselines/insiderange-y.png
similarity index 100%
rename from test/image/baselines/zz-insiderange-y.png
rename to test/image/baselines/insiderange-y.png
diff --git a/test/image/baselines/zz-partial-autorange-matching-axes.png b/test/image/baselines/partial-autorange-matching-axes.png
similarity index 100%
rename from test/image/baselines/zz-partial-autorange-matching-axes.png
rename to test/image/baselines/partial-autorange-matching-axes.png
diff --git a/test/image/baselines/pattern_bars.png b/test/image/baselines/pattern_bars.png
index 077c05cf164..69a0826e27c 100644
Binary files a/test/image/baselines/pattern_bars.png and b/test/image/baselines/pattern_bars.png differ
diff --git a/test/image/baselines/zz-pie_pattern.png b/test/image/baselines/pie_pattern.png
similarity index 100%
rename from test/image/baselines/zz-pie_pattern.png
rename to test/image/baselines/pie_pattern.png
diff --git a/test/image/baselines/zz-round-bar_attrs_relative.png b/test/image/baselines/round-bar_attrs_relative.png
similarity index 100%
rename from test/image/baselines/zz-round-bar_attrs_relative.png
rename to test/image/baselines/round-bar_attrs_relative.png
diff --git a/test/image/baselines/zz-round-bar_stackto100_negative.png b/test/image/baselines/round-bar_stackto100_negative.png
similarity index 100%
rename from test/image/baselines/zz-round-bar_stackto100_negative.png
rename to test/image/baselines/round-bar_stackto100_negative.png
diff --git a/test/image/baselines/zz-round-worldcup.png b/test/image/baselines/round-worldcup.png
similarity index 100%
rename from test/image/baselines/zz-round-worldcup.png
rename to test/image/baselines/round-worldcup.png
diff --git a/test/image/baselines/zz-rounded-bar_display_height_zero_no_line_width.png b/test/image/baselines/rounded-bar_display_height_zero_no_line_width.png
similarity index 100%
rename from test/image/baselines/zz-rounded-bar_display_height_zero_no_line_width.png
rename to test/image/baselines/rounded-bar_display_height_zero_no_line_width.png
diff --git a/test/image/baselines/zz-sankey_circular_align_right.png b/test/image/baselines/sankey_circular_align_right.png
similarity index 100%
rename from test/image/baselines/zz-sankey_circular_align_right.png
rename to test/image/baselines/sankey_circular_align_right.png
diff --git a/test/image/baselines/sunburst_flare.png b/test/image/baselines/sunburst_flare.png
index 922ededcc65..26d55ac5306 100644
Binary files a/test/image/baselines/sunburst_flare.png and b/test/image/baselines/sunburst_flare.png differ
diff --git a/test/image/baselines/sunburst_inside-text-orientation.png b/test/image/baselines/sunburst_inside-text-orientation.png
index ed42444b3c8..034028f2e4c 100644
Binary files a/test/image/baselines/sunburst_inside-text-orientation.png and b/test/image/baselines/sunburst_inside-text-orientation.png differ
diff --git a/test/image/baselines/sunburst_packages_colorscale_novalue.png b/test/image/baselines/sunburst_packages_colorscale_novalue.png
index 2f09e9246aa..bcc8b6d907e 100644
Binary files a/test/image/baselines/sunburst_packages_colorscale_novalue.png and b/test/image/baselines/sunburst_packages_colorscale_novalue.png differ
diff --git a/test/image/baselines/zz-sunburst_pattern.png b/test/image/baselines/sunburst_pattern.png
similarity index 100%
rename from test/image/baselines/zz-sunburst_pattern.png
rename to test/image/baselines/sunburst_pattern.png
diff --git a/test/image/baselines/treemap_packages_colorscale_novalue.png b/test/image/baselines/treemap_packages_colorscale_novalue.png
index 5efd24ef2d9..0ec48aa585b 100644
Binary files a/test/image/baselines/treemap_packages_colorscale_novalue.png and b/test/image/baselines/treemap_packages_colorscale_novalue.png differ
diff --git a/test/image/baselines/treemap_sunburst_marker_colors.png b/test/image/baselines/treemap_sunburst_marker_colors.png
index 209427c1b2a..22e8e93c76d 100644
Binary files a/test/image/baselines/treemap_sunburst_marker_colors.png and b/test/image/baselines/treemap_sunburst_marker_colors.png differ
diff --git a/test/image/baselines/treemap_textfit.png b/test/image/baselines/treemap_textfit.png
index 6a84b2837de..69c5528fca1 100644
Binary files a/test/image/baselines/treemap_textfit.png and b/test/image/baselines/treemap_textfit.png differ
diff --git a/test/image/baselines/uniformtext_sunburst_treemap.png b/test/image/baselines/uniformtext_sunburst_treemap.png
index d99afe65a59..31adc8ab71e 100644
Binary files a/test/image/baselines/uniformtext_sunburst_treemap.png and b/test/image/baselines/uniformtext_sunburst_treemap.png differ
diff --git a/test/image/mocks/zz-allowed-range-small.json b/test/image/mocks/allowed-range-small.json
similarity index 100%
rename from test/image/mocks/zz-allowed-range-small.json
rename to test/image/mocks/allowed-range-small.json
diff --git a/test/image/mocks/zz-allowed-range.json b/test/image/mocks/allowed-range.json
similarity index 100%
rename from test/image/mocks/zz-allowed-range.json
rename to test/image/mocks/allowed-range.json
diff --git a/test/image/mocks/zzz-automargin-title-paper-multiline-bottom.json b/test/image/mocks/automargin-title-paper-multiline-bottom.json
similarity index 100%
rename from test/image/mocks/zzz-automargin-title-paper-multiline-bottom.json
rename to test/image/mocks/automargin-title-paper-multiline-bottom.json
diff --git a/test/image/mocks/zz-bar-rounded-corners.json b/test/image/mocks/bar-rounded-corners.json
similarity index 100%
rename from test/image/mocks/zz-bar-rounded-corners.json
rename to test/image/mocks/bar-rounded-corners.json
diff --git a/test/image/mocks/zz-container-colorbar-vertical-w-margin.json b/test/image/mocks/container-colorbar-vertical-w-margin.json
similarity index 100%
rename from test/image/mocks/zz-container-colorbar-vertical-w-margin.json
rename to test/image/mocks/container-colorbar-vertical-w-margin.json
diff --git a/test/image/mocks/zz-heatmap-log-scale.json b/test/image/mocks/heatmap-log-scale.json
similarity index 100%
rename from test/image/mocks/zz-heatmap-log-scale.json
rename to test/image/mocks/heatmap-log-scale.json
diff --git a/test/image/mocks/zz_histogram_overlay-1point-date.json b/test/image/mocks/histogram_overlay-1point-date.json
similarity index 100%
rename from test/image/mocks/zz_histogram_overlay-1point-date.json
rename to test/image/mocks/histogram_overlay-1point-date.json
diff --git a/test/image/mocks/zz-insiderange-x-narrow.json b/test/image/mocks/insiderange-x-narrow.json
similarity index 100%
rename from test/image/mocks/zz-insiderange-x-narrow.json
rename to test/image/mocks/insiderange-x-narrow.json
diff --git a/test/image/mocks/zz-insiderange-x.json b/test/image/mocks/insiderange-x.json
similarity index 100%
rename from test/image/mocks/zz-insiderange-x.json
rename to test/image/mocks/insiderange-x.json
diff --git a/test/image/mocks/zz-insiderange-y-narrow.json b/test/image/mocks/insiderange-y-narrow.json
similarity index 100%
rename from test/image/mocks/zz-insiderange-y-narrow.json
rename to test/image/mocks/insiderange-y-narrow.json
diff --git a/test/image/mocks/zz-insiderange-y.json b/test/image/mocks/insiderange-y.json
similarity index 100%
rename from test/image/mocks/zz-insiderange-y.json
rename to test/image/mocks/insiderange-y.json
diff --git a/test/image/mocks/zz-partial-autorange-matching-axes.json b/test/image/mocks/partial-autorange-matching-axes.json
similarity index 100%
rename from test/image/mocks/zz-partial-autorange-matching-axes.json
rename to test/image/mocks/partial-autorange-matching-axes.json
diff --git a/test/image/mocks/zz-pie_pattern.json b/test/image/mocks/pie_pattern.json
similarity index 100%
rename from test/image/mocks/zz-pie_pattern.json
rename to test/image/mocks/pie_pattern.json
diff --git a/test/image/mocks/zz-round-bar_attrs_relative.json b/test/image/mocks/round-bar_attrs_relative.json
similarity index 100%
rename from test/image/mocks/zz-round-bar_attrs_relative.json
rename to test/image/mocks/round-bar_attrs_relative.json
diff --git a/test/image/mocks/zz-round-bar_stackto100_negative.json b/test/image/mocks/round-bar_stackto100_negative.json
similarity index 100%
rename from test/image/mocks/zz-round-bar_stackto100_negative.json
rename to test/image/mocks/round-bar_stackto100_negative.json
diff --git a/test/image/mocks/zz-round-worldcup.json b/test/image/mocks/round-worldcup.json
similarity index 100%
rename from test/image/mocks/zz-round-worldcup.json
rename to test/image/mocks/round-worldcup.json
diff --git a/test/image/mocks/zz-rounded-bar_display_height_zero_no_line_width.json b/test/image/mocks/rounded-bar_display_height_zero_no_line_width.json
similarity index 100%
rename from test/image/mocks/zz-rounded-bar_display_height_zero_no_line_width.json
rename to test/image/mocks/rounded-bar_display_height_zero_no_line_width.json
diff --git a/test/image/mocks/zz-sankey_circular_align_right.json b/test/image/mocks/sankey_circular_align_right.json
similarity index 100%
rename from test/image/mocks/zz-sankey_circular_align_right.json
rename to test/image/mocks/sankey_circular_align_right.json
diff --git a/test/image/mocks/zz-sunburst_pattern.json b/test/image/mocks/sunburst_pattern.json
similarity index 100%
rename from test/image/mocks/zz-sunburst_pattern.json
rename to test/image/mocks/sunburst_pattern.json