[iOS] <select multiple> group headers are illegible in dark mode

https://bugs.webkit.org/show_bug.cgi?id=222914
<rdar://problem/75020326>

Reviewed by Tim Horton.

* UIProcess/ios/forms/WKFormSelectPicker.mm:
(-[WKSelectPickerTableViewController tableView:heightForHeaderInSection:]):

Do not specify a textColor for the header label. This ensures the default
semantic label color is used, which automatically adapts when dark mode
is enabled.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@274085 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebKit/ChangeLog

@@ -1,3 +1,18 @@
+2021-03-08  Aditya Keerthi  <[email protected]>
+
+        [iOS] <select multiple> group headers are illegible in dark mode
+        https://bugs.webkit.org/show_bug.cgi?id=222914
+        <rdar://problem/75020326>
+
+        Reviewed by Tim Horton.
+
+        * UIProcess/ios/forms/WKFormSelectPicker.mm:
+        (-[WKSelectPickerTableViewController tableView:heightForHeaderInSection:]):
+
+        Do not specify a textColor for the header label. This ensures the default
+        semantic label color is used, which automatically adapts when dark mode
+        is enabled.
+
 2021-03-08  Chris Dumez  <[email protected]>
 
         Simplify CallbackAggregator in WebsiteDataStore::removeData()

Source/WebKit/UIProcess/ios/forms/WKFormSelectPicker.mm

@@ -847,7 +847,6 @@ - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger
 
     auto sectionLabel = adoptNS([[UILabel alloc] init]);
     [sectionLabel setText:[self tableView:tableView titleForHeaderInSection:section]];
-    [sectionLabel setTextColor:UIColor.blackColor];
     [sectionLabel setFont:[UIFont boldSystemFontOfSize:sectionHeaderFontSize]];
     [sectionLabel setAdjustsFontSizeToFitWidth:NO];
     [sectionLabel setLineBreakMode:NSLineBreakByTruncatingTail];