diff --git a/.gitattributes b/.gitattributes
index 72456d0..261f511 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -49,8 +49,12 @@ icons/object_remove_original.png -text
 icons/object_visible.jpg -text
 icons/print.png -text
 icons/print_original.png -text
+icons/show_task.png -text
+icons/show_task_min.png -text
 icons/tool_annotation.png -text
 icons/tool_annotation_original.png -text
+icons/tool_contrast.png -text
+icons/tool_contrast_original.png -text
 icons/tool_photo.png -text
 icons/tool_photo_original.png -text
 icons/tool_rotate.gif -text
diff --git a/icons/show_task.png b/icons/show_task.png
new file mode 100644
index 0000000..1ecc28e
Binary files /dev/null and b/icons/show_task.png differ
diff --git a/icons/show_task_min.png b/icons/show_task_min.png
new file mode 100644
index 0000000..257093a
Binary files /dev/null and b/icons/show_task_min.png differ
diff --git a/icons/tool_contrast.png b/icons/tool_contrast.png
new file mode 100644
index 0000000..072733e
Binary files /dev/null and b/icons/tool_contrast.png differ
diff --git a/icons/tool_contrast_original.png b/icons/tool_contrast_original.png
new file mode 100644
index 0000000..a858a1b
Binary files /dev/null and b/icons/tool_contrast_original.png differ
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libgit2 0.21.2