WebKit currently has an upper limit on the stroke width returned from MACaptionAppearanceCopyFontDescriptorWithStrokeForStyle. Also, the stroke width is currently calculated based on the font size in pixels, it should be calculated based on the font size in points.
Created attachment 312957 [details] Patch
Created attachment 312964 [details] Patch
rdar://problem/32761276
Created attachment 312975 [details] Patch
Created attachment 313068 [details] Patch
Created attachment 313069 [details] Patch
Comment on attachment 313069 [details] Patch Thanks for reviewing, Eric!
Comment on attachment 313069 [details] Patch Clearing flags on attachment: 313069 Committed r218388: <http://trac.webkit.org/changeset/218388>
All reviewed patches have been landed. Closing bug.