[Documentation:Developer] Optimize png image assets (#554)

PR optimizes the size of the PNG image assets, by running the [advpng](https://www.advancemame.it/doc-advpng.html) utility over them, which recompresses the images, where I used the [zopfli compression](https://en.wikipedia.org/wiki/Zopfli) mode. This gives a saving of about ~80MB over the entire directory, which should hopefully make working with the repo a bit more efficient and the site load a bit quicker for people on slower connections. The full results from my command are here: ``` advpng -z -4 images/**/*.png images/*.png 76250 57329 75% images/ChangePasswordForm.png 19470 13281 68% images/DatepickerClose.png 131219 96890 73% images/DatepickerSingleNever.png 133514 99177 74% images/DatepickerSingleNow.png 134715 99968 74% images/DatepickerSingleSoon.png 40988 40988 100% images/GSoC-Horizontal.png (Bigger 41004) 23950 23919 99% images/GSoC-Vertical.png 5144 4400 85% images/GSoC.png 6579 4427 67% images/GSoC_padding.png 92158 51944 56% images/Homepage.png 72785 53675 73% images/HomepagePassword.png 160855 123043 76% images/LateDays.png 32746 26897 82% images/Login.png 181093 134629 74% images/NavigationPageForTA.png 222903 130921 58% images/NavigationStudent.png 72343 62704 86% images/OverrideEmpty.png 75689 65501 86% images/OverrideEntered.png 89147 76464 85% images/OverrideMultipleOther.png 73997 64047 86% images/OverrideSelected.png 150782 94259 62% images/PreferredNameForm.png 173946 116248 66% images/RCOS.png 202524 152474 75% images/RCOS_padding.png 41417 28167 68% images/RCOS_report/2023_Mahi_Pasarkar/cal-menu.png 110127 78961 71% images/RCOS_report/2023_Mahi_Pasarkar/cal-new.png 98910 69913 70% images/RCOS_report/2023_Mahi_Pasarkar/cal-old.png 47625 38070 79% images/RPI_seal.png 93321 57728 61% images/RPI_seal_padding.png 316557 231329 73% images/Rollback.png 202659 135673 66% images/Rollback2.png 280584 157215 56% images/Submission.png 216729 170066 78% images/Submission_Files.png 192213 147931 76% images/Submission_Result_Buggy.png 131221 93562 71% images/TAOverriden1.png 185423 129024 69% images/TAOverriden2.png 223549 172050 76% images/TAgradereport.png 240879 183412 76% images/TestCaseDetails.png 32797 18815 57% images/Virtualization_Instructions_1.png 173967 92399 53% images/access_level.png 12984 7543 58% images/border-outline-description.png 133711 76368 57% images/bulkupload_assignedpages.png 134900 76813 56% images/bulkupload_autogradingconfig.png 168905 104069 61% images/bulkupload_labeling.png 69646 43359 62% images/bulkupload_newgradeable.png 36241 20705 57% images/bulkupload_submission.png 51005 29427 57% images/bulkupload_submission_qr.png 21325 14913 69% images/bulkuploadsubmission_ocr.png 20746 12483 60% images/change_theme.png 55908 28467 50% images/change_theme_black.png 213190 175216 82% images/choose_hw.png 1051617 1051617 100% images/choose_hw_ORIGINAL.png (Bigger 1131815) 78418 59932 76% images/config_path_interface.png 26172 14626 55% images/config_repo_box.png 65896 47192 71% images/config_upload_interface.png 932282 819517 87% images/course_materials_all_changed.png 7270 4484 61% images/course_materials_checkbox.png 36900 34567 93% images/course_materials_date.png 276 258 93% images/course_materials_delete.png 277 270 97% images/course_materials_download.png 8724 8192 93% images/course_materials_folder.png 100537 87867 87% images/course_materials_individual_folder_done.png 5385 4904 91% images/course_materials_legend.png 909633 799806 87% images/course_materials_open_all.png 10181 8727 85% images/course_materials_option_subdir.png 83461 73170 87% images/course_materials_overview.png 302 299 99% images/course_materials_popup.png 114783 97946 85% images/course_materials_set_all_picker.png 92877 80899 87% images/course_materials_set_all_popup.png 1554 1407 90% images/course_materials_set_folder_button.png 94687 82759 87% images/course_materials_set_indiv_folder_popup.png 115279 98675 85% images/course_materials_set_individual_never.png 116255 99686 85% images/course_materials_set_individual_now.png 4433 4222 95% images/course_materials_share.png 1834 1734 94% images/course_materials_upload_button.png 72773 43450 59% images/course_materials_upload_form_v2.png 108258 93599 86% images/course_materials_upload_form_v3.png 129501 69737 53% images/create_gradeable_git.png 173491 118819 68% images/data_entry.png 724751 566904 78% images/data_entry_ORIGINAL.png 538033 504239 93% images/database_course_entity_graph.png 100749 96601 95% images/database_entity_graph.png 6774 1763 26% images/discussion_forum_icons/df_bookmark.png 7147 1817 25% images/discussion_forum_icons/df_checkmark.png 7092 2141 30% images/discussion_forum_icons/df_lock.png 7258 2208 30% images/discussion_forum_icons/df_question_mark.png 6068 763 12% images/discussion_forum_icons/df_thumbtack.png 39393 33236 84% images/ex_tree.png 210819 144715 68% images/files_for_compilation.png 241487 164111 67% images/files_for_runner.png 321489 224833 69% images/files_for_validation.png 35312 19848 56% images/hector_rodriguez_ms/submitty_autograder_before.png 39432 22847 57% images/hector_rodriguez_ms/submitty_autograder_scheduler_logs.png 37302 21288 57% images/hector_rodriguez_ms/submitty_autograder_with_scheduler.png 14810 6874 46% images/installation_update.png 104381 85216 81% images/instructor/assignment_preparation/new_gradeable.png 31593 26586 84% images/instructor/assignment_preparation/subdirectory_gradeables.png 58257 40899 70% images/instructor/assignment_preparation/vcs_gradeable_type.png 234124 133024 56% images/instructor/lichen/anon_mode.png 9199 4328 47% images/instructor/lichen/others.png 110933 62210 56% images/instructor/lichen/result_page.png 66173 36164 54% images/instructor/lichen/summary_page.png 24593 12477 50% images/instructor/lichen/switch_user.png 6808 4238 62% images/instructor/lichen/switch_version.png 182506 172154 94% images/instructor/lichen/view_log.png 100520 41494 41% images/instructor/personalized_exam/blank_page_1.png 77577 25021 32% images/instructor/personalized_exam/blank_page_2.png 135329 65064 48% images/instructor/personalized_exam/personalized_page_1.png 75699 28808 38% images/instructor/personalized_exam/personalized_page_2.png 4080919 4080919 100% images/iris_ORIGINAL.png (Bigger 4312695) 38490 22101 57% images/killSignal.png 130067 77737 59% images/late_day_details.png 72756 67423 92% images/lichen_color_click.png 90032 83350 92% images/lichen_interface.png 18429 10743 58% images/linux_scansnap_150dpi.png 42252 25193 59% images/linux_scansnap_photo.png 532982 532982 100% images/logo_cs_design.png (Unsupported interlace 1) 199122 129525 65% images/main_view_forum.png 170364 133874 78% images/moorthy_duck.png 352262 297624 84% images/navigation_instructor.png 68997 31324 45% images/notebook_code.png 408400 408400 100% images/notebook_image.png (Bigger 487273) 115377 75382 65% images/notebook_multiple_choice.png 33042 20799 62% images/notifications/notification_collapsed.png 32275 16036 49% images/notifications/notification_expanded.png 75954 47886 63% images/notifications/notification_page.png 30165 15845 52% images/notifications/self_notifications.png 431902 252859 58% images/peer_grading/peer_grading_instructor_view.png 210545 138791 65% images/peer_grading/peer_grading_matrix_csv.png 163385 105940 64% images/peer_grading/peer_grading_matrix_uploaded.png 400139 233226 58% images/peer_grading/peer_grading_peer_panes.png 342353 191195 55% images/peer_grading/peer_grading_peer_view.png 142590 93092 65% images/peer_grading/peer_grading_rubric.png 245910 134372 54% images/peer_grading/peer_grading_student_view.png 122390 90853 74% images/peer_grading/peer_matrix_options.png 4705628 4705628 100% images/people/2021_summer_fall.png (Bigger 6128439) 4948760 4948760 100% images/people/2022_summer.png (Bigger 6534861) 8325718 8325718 100% images/people/2023_spring.png (Bigger 12572340) 6073392 6073392 100% images/people/2023_summer.png (Bigger 9498905) 9103 5968 65% images/queue/queue_change_code.png 82758 45887 55% images/queue/queue_contact_information.png 166705 99409 59% images/queue/queue_enable.png 185797 111700 60% images/queue/queue_enable_completed.png 70474 39992 56% images/queue/queue_filter.png 55806 31476 56% images/queue/queue_finish_blue.png 55731 31364 56% images/queue/queue_finish_green.png 15595 8132 52% images/queue/queue_helping.png 31613 20299 64% images/queue/queue_join.png 55596 31336 56% images/queue/queue_main_view.png 28115 14144 50% images/queue/queue_menu.png 18763 13520 72% images/queue/queue_new_queue.png 21820 13623 62% images/queue/queue_open_modify.png 144191 73557 51% images/queue/queue_remote_access_code.png 80395 50151 62% images/queue/queue_settings.png 10867 6428 59% images/queue/queue_settings_button.png 37228 33929 91% images/queue/queue_stats_button.png 120779 69002 57% images/queue/queue_stats_example.png 18294 9981 54% images/queue/queue_waiting.png 4080919 4080919 100% images/rainbow_grades.png (Bigger 4312695) 12965 8950 69% images/room_templates_course_settings.png 179017 151794 84% images/room_templates_nav_page.png 56960 46899 82% images/room_templates_nav_page_no_report.png 60984 50693 83% images/room_templates_nav_page_no_template.png 14438 7284 50% images/router_structure.png 246332 152761 62% images/selector-playground.png 104602 62636 59% images/sorting_and_navigation/index.png 16809 10987 65% images/sorting_and_navigation/navigation_bar.png 16558 10949 66% images/sorting_and_navigation/navigation_bar_arrows.png 16724 10999 65% images/sorting_and_navigation/navigation_bar_full_screen.png 16790 10952 65% images/sorting_and_navigation/navigation_bar_panel_selector.png 583747 387651 66% images/sql_toolbox.png 12379 3592 29% images/student/ChangePasswordField.png 81109 45109 55% images/student/ChangePasswordForm.png 61970 42721 68% images/student/UploadProfilePhotoForm.png 8413 5458 64% images/student/exhausted_profile_photo_quota.png 15394 6170 40% images/student/flagged_photo.png 75863 41435 54% images/student/mid_semester_rainbow_grades.png 49894 34912 69% images/student/my_profile.png 70672 46571 65% images/student/secondary_email.png 14538 4536 31% images/student/select_theme_field.png 263300 145171 55% images/student/specify_timezone.png 18595 6995 37% images/student/specify_timezone_field.png 61863 36359 58% images/student/theme_options.png 176692 115878 65% images/student/timezone_dropdown.png 114544 68811 60% images/student/user_profile.png 47892 41638 86% images/student/user_profile_specify_locale.png 111736 74013 66% images/studentOverriden.png 128070 76417 59% images/student_activity_dashboard.png 44353 30684 69% images/student_photos_empty_pic.png 2431 1382 56% images/student_photos_upload_button.png 37042 22651 61% images/student_photos_upload_form.png 364537 364537 100% images/student_photos_uploaded_pic.png (Bigger 394792) 333558 320688 96% images/student_ui_details.png 1059845 1059845 100% images/student_ui_details_ORIGINAL.png (Bigger 1261341) 228474 160224 70% images/student_ui_progression.png 1257059 1037033 82% images/student_ui_progression_ORIGINAL.png 86815 60046 69% images/submitty_logo.png 29566 29566 100% images/submitty_logo_small_square.png (Unsupported bit depth/color type, 16/2) 55363 48589 87% images/submitty_pr_with_buildbot.png 7138 4788 67% images/system_caffeine.png 115792 83678 72% images/system_outage_message.png 158623 85885 54% images/ta_grading/TA_grading_panes.png 177568 102613 57% images/ta_grading/TA_index.png 195718 111460 56% images/ta_grading/TA_index_progress.png 224729 180320 80% images/ta_grading/TA_lab_grades.png 159739 123291 77% images/ta_grading/TA_overview.png 229449 180168 78% images/ta_grading/TA_test_grades.png 121178 67910 56% images/ta_grading/rubric_grading_autograding_histogram.png 289731 177649 61% images/ta_grading/rubric_grading_data.png 74254 36936 49% images/ta_grading/rubric_grading_edit_rubric.png 76149 37520 49% images/ta_grading/rubric_grading_manual_components.png 129142 74665 57% images/ta_grading/rubric_grading_overall_histogram.png 480967 278545 57% images/ta_grading/rubric_grading_overview.png 73401 36766 50% images/ta_grading/rubric_grading_panels_1.png 115313 65094 56% images/ta_grading/rubric_grading_pdf_annotation.png 96267 53319 55% images/ta_grading/rubric_grading_who_got_mark.png 78418 39770 50% images/ta_grading/silent_regrade_example.png 77709 39214 50% images/ta_grading/silent_regrade_off_example.png 78285 39631 50% images/ta_grading/silent_regrade_on_example.png 232512 144147 61% images/ta_ui.png 1238106 1047180 84% images/ta_ui_ORIGINAL.png 66045 45714 69% images/team_assignment_creation.png 36082 21318 59% images/team_assignment_creation_2.png 16415 9322 56% images/team_create_teams.png 146355 81545 55% images/team_edit_team.png 168828 97086 57% images/team_edit_team_2.png 1945 950 48% images/team_export.png 65489 36471 55% images/team_grading_page.png 30903 22476 72% images/team_invitations.png 32402 24377 75% images/team_invitations_2.png 28818 22293 77% images/team_invite.png 74185 54887 73% images/team_manage.png 73182 50226 68% images/team_manage_2.png 73025 49122 67% images/team_manage_3.png 29562 18796 63% images/team_navigation.png 33961 24007 70% images/team_seeking.png 38535 27739 71% images/team_seeking_message.png 29763 22460 75% images/team_submission.png 99043 56842 57% images/team_submitted.png 29947 9365 31% images/travis_restart.png 86121 45799 53% images/typo.png 219127 103711 47% images/vagrant_up_ci.png 89034158 80800720 90% ``` Signed-off-by: Matthew Peveler <[email protected]>
Submitty · Oct 2, 2023 · ef23dbd · ef23dbd
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diff --git a/images/ChangePasswordForm.png b/images/ChangePasswordForm.png
diff --git a/images/DatepickerClose.png b/images/DatepickerClose.png
diff --git a/images/DatepickerSingleNever.png b/images/DatepickerSingleNever.png
diff --git a/images/DatepickerSingleNow.png b/images/DatepickerSingleNow.png
diff --git a/images/DatepickerSingleSoon.png b/images/DatepickerSingleSoon.png
diff --git a/images/GSoC-Vertical.png b/images/GSoC-Vertical.png
diff --git a/images/GSoC.png b/images/GSoC.png
diff --git a/images/GSoC_padding.png b/images/GSoC_padding.png
diff --git a/images/Homepage.png b/images/Homepage.png
diff --git a/images/HomepagePassword.png b/images/HomepagePassword.png
diff --git a/images/LateDays.png b/images/LateDays.png
diff --git a/images/Login.png b/images/Login.png
diff --git a/images/NavigationPageForTA.png b/images/NavigationPageForTA.png
diff --git a/images/NavigationStudent.png b/images/NavigationStudent.png
diff --git a/images/OverrideEmpty.png b/images/OverrideEmpty.png
diff --git a/images/OverrideEntered.png b/images/OverrideEntered.png
diff --git a/images/OverrideMultipleOther.png b/images/OverrideMultipleOther.png
diff --git a/images/OverrideSelected.png b/images/OverrideSelected.png
diff --git a/images/PreferredNameForm.png b/images/PreferredNameForm.png
diff --git a/images/RCOS.png b/images/RCOS.png
diff --git a/images/RCOS_padding.png b/images/RCOS_padding.png
diff --git a/images/RCOS_report/2023_Mahi_Pasarkar/cal-menu.png b/images/RCOS_report/2023_Mahi_Pasarkar/cal-menu.png
diff --git a/images/RCOS_report/2023_Mahi_Pasarkar/cal-new.png b/images/RCOS_report/2023_Mahi_Pasarkar/cal-new.png
diff --git a/images/RCOS_report/2023_Mahi_Pasarkar/cal-old.png b/images/RCOS_report/2023_Mahi_Pasarkar/cal-old.png
diff --git a/images/RPI_seal.png b/images/RPI_seal.png
diff --git a/images/RPI_seal_padding.png b/images/RPI_seal_padding.png
diff --git a/images/Rollback.png b/images/Rollback.png
diff --git a/images/Rollback2.png b/images/Rollback2.png
diff --git a/images/Submission.png b/images/Submission.png
diff --git a/images/Submission_Files.png b/images/Submission_Files.png
diff --git a/images/Submission_Result_Buggy.png b/images/Submission_Result_Buggy.png
diff --git a/images/TAOverriden1.png b/images/TAOverriden1.png
diff --git a/images/TAOverriden2.png b/images/TAOverriden2.png
diff --git a/images/TAgradereport.png b/images/TAgradereport.png
diff --git a/images/TestCaseDetails.png b/images/TestCaseDetails.png
diff --git a/images/Virtualization_Instructions_1.png b/images/Virtualization_Instructions_1.png
diff --git a/images/access_level.png b/images/access_level.png
diff --git a/images/border-outline-description.png b/images/border-outline-description.png
diff --git a/images/bulkupload_assignedpages.png b/images/bulkupload_assignedpages.png
diff --git a/images/bulkupload_autogradingconfig.png b/images/bulkupload_autogradingconfig.png
diff --git a/images/bulkupload_labeling.png b/images/bulkupload_labeling.png
diff --git a/images/bulkupload_newgradeable.png b/images/bulkupload_newgradeable.png
diff --git a/images/bulkupload_submission.png b/images/bulkupload_submission.png
diff --git a/images/bulkupload_submission_qr.png b/images/bulkupload_submission_qr.png
diff --git a/images/bulkuploadsubmission_ocr.png b/images/bulkuploadsubmission_ocr.png
diff --git a/images/change_theme.png b/images/change_theme.png
diff --git a/images/change_theme_black.png b/images/change_theme_black.png
diff --git a/images/choose_hw.png b/images/choose_hw.png
diff --git a/images/config_path_interface.png b/images/config_path_interface.png
diff --git a/images/config_repo_box.png b/images/config_repo_box.png
diff --git a/images/config_upload_interface.png b/images/config_upload_interface.png
diff --git a/images/course_materials_all_changed.png b/images/course_materials_all_changed.png
diff --git a/images/course_materials_checkbox.png b/images/course_materials_checkbox.png
diff --git a/images/course_materials_date.png b/images/course_materials_date.png
diff --git a/images/course_materials_delete.png b/images/course_materials_delete.png
diff --git a/images/course_materials_download.png b/images/course_materials_download.png
diff --git a/images/course_materials_folder.png b/images/course_materials_folder.png
diff --git a/images/course_materials_individual_folder_done.png b/images/course_materials_individual_folder_done.png
diff --git a/images/course_materials_legend.png b/images/course_materials_legend.png
diff --git a/images/course_materials_open_all.png b/images/course_materials_open_all.png
diff --git a/images/course_materials_option_subdir.png b/images/course_materials_option_subdir.png
diff --git a/images/course_materials_overview.png b/images/course_materials_overview.png
diff --git a/images/course_materials_popup.png b/images/course_materials_popup.png
diff --git a/images/course_materials_set_all_picker.png b/images/course_materials_set_all_picker.png
diff --git a/images/course_materials_set_all_popup.png b/images/course_materials_set_all_popup.png
diff --git a/images/course_materials_set_folder_button.png b/images/course_materials_set_folder_button.png
diff --git a/images/course_materials_set_indiv_folder_popup.png b/images/course_materials_set_indiv_folder_popup.png
diff --git a/images/course_materials_set_individual_never.png b/images/course_materials_set_individual_never.png
diff --git a/images/course_materials_set_individual_now.png b/images/course_materials_set_individual_now.png
diff --git a/images/course_materials_share.png b/images/course_materials_share.png
diff --git a/images/course_materials_upload_button.png b/images/course_materials_upload_button.png
diff --git a/images/course_materials_upload_form_v2.png b/images/course_materials_upload_form_v2.png
diff --git a/images/course_materials_upload_form_v3.png b/images/course_materials_upload_form_v3.png
diff --git a/images/create_gradeable_git.png b/images/create_gradeable_git.png
diff --git a/images/data_entry.png b/images/data_entry.png
diff --git a/images/data_entry_ORIGINAL.png b/images/data_entry_ORIGINAL.png
diff --git a/images/database_course_entity_graph.png b/images/database_course_entity_graph.png
diff --git a/images/database_entity_graph.png b/images/database_entity_graph.png
diff --git a/images/discussion_forum_icons/df_bookmark.png b/images/discussion_forum_icons/df_bookmark.png
diff --git a/images/discussion_forum_icons/df_checkmark.png b/images/discussion_forum_icons/df_checkmark.png
diff --git a/images/discussion_forum_icons/df_lock.png b/images/discussion_forum_icons/df_lock.png
diff --git a/images/discussion_forum_icons/df_question_mark.png b/images/discussion_forum_icons/df_question_mark.png
diff --git a/images/discussion_forum_icons/df_thumbtack.png b/images/discussion_forum_icons/df_thumbtack.png
diff --git a/images/ex_tree.png b/images/ex_tree.png
diff --git a/images/files_for_compilation.png b/images/files_for_compilation.png
diff --git a/images/files_for_runner.png b/images/files_for_runner.png
diff --git a/images/files_for_validation.png b/images/files_for_validation.png
diff --git a/images/hector_rodriguez_ms/submitty_autograder_before.png b/images/hector_rodriguez_ms/submitty_autograder_before.png
diff --git a/images/hector_rodriguez_ms/submitty_autograder_scheduler_logs.png b/images/hector_rodriguez_ms/submitty_autograder_scheduler_logs.png
diff --git a/images/hector_rodriguez_ms/submitty_autograder_with_scheduler.png b/images/hector_rodriguez_ms/submitty_autograder_with_scheduler.png
diff --git a/images/installation_update.png b/images/installation_update.png
diff --git a/images/instructor/assignment_preparation/new_gradeable.png b/images/instructor/assignment_preparation/new_gradeable.png
diff --git a/images/instructor/assignment_preparation/subdirectory_gradeables.png b/images/instructor/assignment_preparation/subdirectory_gradeables.png
diff --git a/images/instructor/assignment_preparation/vcs_gradeable_type.png b/images/instructor/assignment_preparation/vcs_gradeable_type.png
diff --git a/images/instructor/lichen/anon_mode.png b/images/instructor/lichen/anon_mode.png
diff --git a/images/instructor/lichen/others.png b/images/instructor/lichen/others.png
diff --git a/images/instructor/lichen/result_page.png b/images/instructor/lichen/result_page.png
diff --git a/images/instructor/lichen/summary_page.png b/images/instructor/lichen/summary_page.png
diff --git a/images/instructor/lichen/switch_user.png b/images/instructor/lichen/switch_user.png
diff --git a/images/instructor/lichen/switch_version.png b/images/instructor/lichen/switch_version.png
diff --git a/images/instructor/lichen/view_log.png b/images/instructor/lichen/view_log.png
diff --git a/images/instructor/personalized_exam/blank_page_1.png b/images/instructor/personalized_exam/blank_page_1.png
diff --git a/images/instructor/personalized_exam/blank_page_2.png b/images/instructor/personalized_exam/blank_page_2.png
diff --git a/images/instructor/personalized_exam/personalized_page_1.png b/images/instructor/personalized_exam/personalized_page_1.png
diff --git a/images/instructor/personalized_exam/personalized_page_2.png b/images/instructor/personalized_exam/personalized_page_2.png
diff --git a/images/killSignal.png b/images/killSignal.png
diff --git a/images/late_day_details.png b/images/late_day_details.png
diff --git a/images/lichen_color_click.png b/images/lichen_color_click.png
diff --git a/images/lichen_interface.png b/images/lichen_interface.png
diff --git a/images/linux_scansnap_150dpi.png b/images/linux_scansnap_150dpi.png
diff --git a/images/linux_scansnap_photo.png b/images/linux_scansnap_photo.png
diff --git a/images/main_view_forum.png b/images/main_view_forum.png
diff --git a/images/moorthy_duck.png b/images/moorthy_duck.png
diff --git a/images/navigation_instructor.png b/images/navigation_instructor.png
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diff --git a/images/ta_grading/rubric_grading_who_got_mark.png b/images/ta_grading/rubric_grading_who_got_mark.png
diff --git a/images/ta_grading/silent_regrade_example.png b/images/ta_grading/silent_regrade_example.png
diff --git a/images/ta_grading/silent_regrade_off_example.png b/images/ta_grading/silent_regrade_off_example.png
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