WOW, thank you very much!
Will post as 1.6.2.5-pre7 in a bit, under "development builds".
Things have moved since I posted the list, however.
The current list of what's missing is below.
For an explanation of "redundant" items (near the end), please see this:
http://www.aqua-mail.com/forum/index.php?topic=4669.0
*** zh-rCN: Missing: 62
<!-- strings_cwac.xml -->
<string name="cwac_richedittext_fillcolor">Fill color</string>
<!-- strings_search.xml -->
<string name="search_folder_hint_server">Search folder and server</string>
<string name="search_type_help_all">Search headers and text</string>
<string name="search_type_help_headers">Search headers only</string>
<string name="search_type_help_from">Search sender only</string>
<!-- strings_access.xml -->
<string name="access_undo">Undo</string>
<string name="access_tap_to_undo">%1$s: Undo</string>
<string name="access_undone">Undone: %1$s</string>
<!-- strings_help.xml -->
<string name="help_new_undo_title">New: Undo</string>
<string name="help_new_undo_text">Confirmations when moving and deleting messages (before) have been replaced by
an undo button (after).\n\nTo use confirmations again, please turn off \"Enable Undo\" in
app settings - Confirmations and Undo.</string>
<string name="doze_mode_learn_more">Learn more</string>
<string name="doze_mode_activity">Android 6+ Doze Mode</string>
<string name="doze_mode_help_preamble">The newer Android versions restrict how often apps are allowed to work in the background.\n\nWhen
the phone is stationary, Android will let AquaMail check mail only every so often, and less and less often while the phone isn\'t moved.\n\nYou
can avoid this and have AquaMail check mail on the schedule you want by excluding the app from Android\'s \"battery optimization\".</string>
<string name="doze_mode_help_direct">To do this, tap OK below to open the relevant screen in the phone\'s Settings.</string>
<string name="doze_mode_help_settings">To do this, tap OK below to open the relevant screen in the phone\'s Settings.\n\nOn
that screen, tap \"Not optimized\" and choose \"All apps\". Find AquaMail on the list, tap it, and choose \"Don\'t optimize\" (for
Samsung devices, this is a toggle on the right side).</string>
<string name="doze_mode_help_closing">You can also do this later via AquaMail settings, \"Mail, receiving\", or revert the change at any
time in the phone\'s Settings app under \"Battery\".</string>
<!-- strings_account_options.xml -->
<string name="account_options_folder_notify_suppress">Do not notify</string>
<string name="account_options_folder_notify_suppress_suffix">, do not notify</string>
<!-- strings_account_setup.xml -->
<string name="account_setup_oauth_web_activity_title">Please log in</string>
<string name="account_setup_oauth_web_activity_title_arg">Please log into %s</string>
<string name="account_setup_oauth_force_web_login">Force web based login</string>
<string name="account_type_label_hotmail">Hotmail or Outlook.com</string>
<string name="account_type_summary_oauth2">Stronger security (OAUTH2). The app will not know, store, or transmit the password.</string>
<string name="oauth_auth_progress">Authenticating…</string>
<string name="oauth_upgrade_notice">This account can be upgraded to stronger security (OAUTH2)</string>
<string name="oauth_upgrade_confirm_message">The latest security standard, OAUTH2, is a way for the app to access your
mailbox without knowing, storing, or transmitting the password</string>
<string name="oauth_authorize_loading">Loading the login page…</string>
<string name="oauth_authorize_error_invalid_data">The login (OAUTH2) server returned something strange…</string>
<!-- strings__global.xml -->
<plurals name="undo_title_move_to_deleted">
<item quantity="one">%1$d message moved to Deleted</item>
<item quantity="other">%1$d messages moved to Deleted</item>
</plurals>
<plurals name="undo_title_move_to_spam">
<item quantity="one">%1$d message moved to Spam</item>
<item quantity="other">%1$d messages moved to Spam</item>
</plurals>
<plurals name="undo_title_move_to_archive">
<item quantity="one">%1$d message archived</item>
<item quantity="other">%1$d messages archived</item>
</plurals>
<plurals name="undo_title_move_restore">
<item quantity="one">%1$d message restored</item>
<item quantity="other">%1$d messages restored</item>
</plurals>
<plurals name="undo_title_move_to_folder">
<item quantity="one">%1$d message moved to %2$s</item>
<item quantity="other">%1$d messages moved to %2$s</item>
</plurals>
<plurals name="undo_title_hide">
<item quantity="one">%1$d message hidden</item>
<item quantity="other">%1$d messages hidden</item>
</plurals>
<plurals name="undo_title_delete">
<item quantity="one">%1$d message permanently deleted</item>
<item quantity="other">%1$d messages permanently deleted</item>
</plurals>
<plurals name="undo_title_smart_delete">
<item quantity="one">%1$d message deleted</item>
<item quantity="other">%1$d messages deleted</item>
</plurals>
<!-- strings_ical.xml -->
<string name="ical_response_edit_and_send">Edit the response</string>
<string name="ical_response_send_now">Send the response now</string>
<string name="ical_response_dont_send">Don\'t send the response</string>
<!-- strings_prefs.xml -->
<string name="prefs_ui_main_show_total_counts">Show per-folder \"total\" message counts</string>
<string name="prefs_ui_main_show_total_counts_always">Always</string>
<string name="prefs_ui_main_show_total_counts_never">Never</string>
<string name="prefs_ui_main_show_total_counts_auto">Auto (depending on available width)</string>
<string name="prefs_ui_cache_root">Folder for caching attachments</string>
<string name="prefs_ui_cache_root_internal">In built-in large memory</string>
<string name="prefs_ui_cache_root_microsd">On the memory card</string>
<string name="prefs_category_confirm_undo">Confirmations and undo</string>
<string name="prefs_ui_use_undo">Enable Undo</string>
<string name="prefs_ui_use_undo_summary">Skip confirmations (before) and show a button to Undo instead (after)</string>
<string name="prefs_ui_use_undo_help">The settings below will be used when Undo is not available, e.g. for notifications</string>
<string name="prefs_contacts_replace_names_view_summary">Replace original contact names with those from your Contacts, except on the compose screen</string>
<string name="prefs_threaded_sender">Combine on sender + subject</string>
<string name="prefs_threaded_sender_summary">Even when the messages are not replies to each other</string>
<string name="prefs_threaded_reverse_children">Reverse when expanded</string>
<string name="prefs_threaded_reverse_children_summary">Reverse the order of expanded messages, from older to newer</string>
<string name="prefs_view_list_by_date_sticky">Sticky date headers</string>
<string name="prefs_view_list_by_date_sticky_summary">Date headers stick to the top when scrolling</string>
<string name="prefs_view_list_color_chips_muted">Muted colors</string>
<string name="prefs_view_list_color_chips_muted_summary">Use less bright colors for color chips</string>
<string name="prefs_view_list_bold_aux">Bold: message times and sizes</string>
<string name="prefs_view_list_color_star_indicator">Color: star indicator</string>
<string name="prefs_notify_android_wear">Smart watch enhancements</string>
*** zh-rCN: Redundant: 8
<!-- strings_account_setup.xml -->
<string name="account_setup_gmail_web_activity_title">请登录到Gmail或Google Apps帐户</string>
<string name="account_setup_gmail_web_activity_title_arg">请登录%s</string>
<string name="account_type_summary_gmail">AquaMail将会使用Google推荐的 \"更安全\"的身份认证, 将不会查看,存储或传输帐户的密码.</string>
<string name="oauth_gmail_auth_progress">Google帐户验证中…</string>
<string name="oauth_gmail_upgrade_notice">此Gmail帐户可以升级到Google最新的安全标准(OAUTH2).</string>
<string name="oauth_gmail_upgrade_confirm_message">Google最新的安全标准OAUTH2是一种使AquaMail无需查看/存储/存储密码而
能够访问邮件的认证方式.\n\n本应用将会通过Google帐户服务来请求读取邮件的权限.</string>
<string name="oauth_gmail_web_view_loading">加载Google认证页面…</string>
<string name="oauth_gmail_error_invalid_data">Google的OAUTH2服务器返回了一些奇葩的东西…</string>