diff --git a/docs/en_us/course_authors/source/Images/UnitIdentifier.png b/docs/en_us/course_authors/source/Images/UnitIdentifier.png index 7d4749ffbb..3d94e7e381 100644 Binary files a/docs/en_us/course_authors/source/Images/UnitIdentifier.png and b/docs/en_us/course_authors/source/Images/UnitIdentifier.png differ diff --git a/docs/en_us/course_authors/source/Images/Viz_Revise_ViewLiveandPreview.png b/docs/en_us/course_authors/source/Images/Viz_Revise_ViewLiveandPreview.png index 9a403e24ba..eb8e93f91c 100644 Binary files a/docs/en_us/course_authors/source/Images/Viz_Revise_ViewLiveandPreview.png and b/docs/en_us/course_authors/source/Images/Viz_Revise_ViewLiveandPreview.png differ diff --git a/docs/en_us/course_authors/source/Images/preview_draft.png b/docs/en_us/course_authors/source/Images/preview_draft.png index 85e6f038a6..b8d1092e56 100644 Binary files a/docs/en_us/course_authors/source/Images/preview_draft.png and b/docs/en_us/course_authors/source/Images/preview_draft.png differ diff --git a/docs/en_us/course_authors/source/Images/preview_private.png b/docs/en_us/course_authors/source/Images/preview_private.png index fef5bf6389..8fd703a29e 100644 Binary files a/docs/en_us/course_authors/source/Images/preview_private.png and b/docs/en_us/course_authors/source/Images/preview_private.png differ diff --git a/docs/en_us/course_authors/source/Images/preview_public.png b/docs/en_us/course_authors/source/Images/preview_public.png index a1f99dee06..f9772ed867 100644 Binary files a/docs/en_us/course_authors/source/Images/preview_public.png and b/docs/en_us/course_authors/source/Images/preview_public.png differ diff --git a/docs/en_us/course_authors/source/Images/unit-delete.png b/docs/en_us/course_authors/source/Images/unit-delete.png index f1e42dca69..3f924f7acc 100644 Binary files a/docs/en_us/course_authors/source/Images/unit-delete.png and b/docs/en_us/course_authors/source/Images/unit-delete.png differ diff --git a/docs/en_us/course_authors/source/Images/unit-dup.png b/docs/en_us/course_authors/source/Images/unit-dup.png index ceb51ebeb7..3a5be435ab 100644 Binary files a/docs/en_us/course_authors/source/Images/unit-dup.png and b/docs/en_us/course_authors/source/Images/unit-dup.png differ diff --git a/docs/en_us/course_authors/source/Images/unit-edit.png b/docs/en_us/course_authors/source/Images/unit-edit.png index 4f1d8fffcd..215c021ed3 100644 Binary files a/docs/en_us/course_authors/source/Images/unit-edit.png and b/docs/en_us/course_authors/source/Images/unit-edit.png differ