resolves #956 ignore style when resolving icon font (PR #964)

CHANGELOG.adoc

@@ -28,6 +28,7 @@ For a detailed view of what has changed, refer to the {uri-repo}/commits/master[
 * guard against pygments returning nil (#884)
 * only look for the start attribute on the code block itself when highlighting with rouge
 * apply block styling to background for line-oriented tokens in rouge by default
+* ignore style when resolving icon font (#956)
 * remove correct width method when overloading Prawn::Text::Formatted::Fragment
 * remove ZWSP from alt text of image to prevent fragment from being duplicated (#958)
 * avoid call to super in prepended module to fix Ruby 1.9.3

lib/asciidoctor-pdf/prawn_ext/extensions.rb

@@ -190,8 +190,11 @@ def register_font data
   #
   def font name = nil, options = {}
     if name
-      ::Prawn::Icon::FontData.load self, name if IconSets.include? name
       options = { size: options } if ::Numeric === options
+      if IconSets.include? name
+        ::Prawn::Icon::FontData.load self, name
+        options = options.reject {|k| k == :style } if options.key? :style
+      end
     end
     super name, options
   end