Always set the export quality to 80%

80% is the sweet spot for most images, producing the smallest possible file sizes without introducing too much visual reductions.

Author: dtdesign

com.woltlab.wcf/option.xml

@@ -926,14 +926,6 @@ redis:wcf.acp.option.cache_source_type.redis</selectoptions>
 				<selectoptions>keep:wcf.acp.option.attachment_image_autoscale_file_type.keep
 image/jpeg:wcf.acp.option.attachment_image_autoscale_file_type.jpeg</selectoptions>
 			</option>
-			<option name="attachment_image_autoscale_quality">
-				<categoryname>message.attachment.autoscale</categoryname>
-				<optiontype>integer</optiontype>
-				<defaultvalue>80</defaultvalue>
-				<minvalue>1</minvalue>
-				<maxvalue>100</maxvalue>
-				<suffix>percent</suffix>
-			</option>
 			<!-- message.general.edit -->
 			<option name="module_edit_history">
 				<categoryname>message.general.edit</categoryname>
@@ -1635,5 +1627,7 @@ DESC:wcf.global.sortOrder.descending</selectoptions>
 		<option name="message_sidebar_enable_articles"/>
 		<category name="security.blacklist"/>
 		<category name="security.blacklist.custom"/>
+
+		<option name="attachment_image_autoscale_quality"/>
 	</delete>
 </data>

constants.php

@@ -202,7 +202,6 @@
 \define("ATTACHMENT_IMAGE_AUTOSCALE_MAX_WIDTH", 1024);
 \define("ATTACHMENT_IMAGE_AUTOSCALE_MAX_HEIGHT", 1024);
 \define("ATTACHMENT_IMAGE_AUTOSCALE_FILE_TYPE", '');
-\define("ATTACHMENT_IMAGE_AUTOSCALE_QUALITY", 80);
 \define('LOG_MISSING_LANGUAGE_ITEMS', 0);
 \define('PRUNE_IP_ADDRESS', 30);
 \define('BREADCRUMBS_HOME_USE_PAGE_TITLE', 1);

wcfsetup/install/files/lib/system/WCF.class.php

@@ -515,6 +515,9 @@ protected function defineLegacyOptions(): void
 
         // The option to show an article counter in the message sidebar was removed with version 6.2.
         \define('MESSAGE_SIDEBAR_ENABLE_ARTICLES', 0);
+
+        // The autoscale quality setting for attachments was removed with version 6.2.
+        \define('ATTACHMENT_IMAGE_AUTOSCALE_QUALITY', 80);
     }
 
     /**