mikutter

該当するのかどうかわかりませんが、以下の Gdk::Pixbuf 関連は修正必要なんでしょうか。

source:core/mui/cairo_miracle_painter.rb@209bebee#L349

  def gen_pixbuf
    @pixmap = gen_pixmap
    Gdk::Pixbuf.from_drawable(nil, @pixmap, 0, 0, width, height)
  end

source:core/mui/gtk_inneruserlist.rb@0803d108#L16

  def initialize(userlist)
    @userlist = userlist
    super(::Gtk::ListStore.new(Gdk::Pixbuf, String, String, Object, Integer))
    append_column ::Gtk::TreeViewColumn.new("", ::Gtk::CellRendererPixbuf.new, pixbuf: COL_ICON)
    append_column ::Gtk::TreeViewColumn.new("SN", ::Gtk::CellRendererText.new, text: COL_SCREEN_NAME)
    append_column ::Gtk::TreeViewColumn.new("名前", ::Gtk::CellRendererText.new, text: COL_NAME)
    model.set_sort_column_id(COL_ORDER,  Gtk::SORT_DESCENDING)
  end

あとチケット本文で言及されてますが source:core/mui/gtk_web_image_loader.rb@7a5fba42 に

rescue Gdk::PixbufError

• mui/cairo_miracle_painter.rb
• mui/cairo_sub_parts_message_base.rb
• mui/gtk_web_image_loader.rb

こちらも grep力が足りてなかったのですが、以下の plugin 内のものはどうでしょう

source:core/plugin/activity/activity.rb@12a020ad#L46

    def column_schemer
      [{:kind => :pixbuf, :type => Gdk::Pixbuf, :label => 'icon'}, # ICON
       {:kind => :text, :type => String, :label => _('種類')},      # KIND

source:core/plugin/change_account/account_control.rb@87daf43d#L11

    def column_schemer
      [{:kind => :pixbuf, :type => Gdk::Pixbuf, :label => ''},
       {:kind => :text, :type => String, :label => Plugin[:change_account]._('SN')},

source:core/plugin/direct_message/dmlistview.rb@0850dd4d#L33

      [{:kind => :pixbuf, :type => Gdk::Pixbuf, :label => @plugin._('icon')},
       {:kind => :text, :type => String, :label => @plugin._('本文'), :renderer => lambda{ |scheme, index|

source:core/plugin/shortcutkey/shortcutkey_listview.rb@7ea62dcb#L42

    def column_schemer
      [{:kind => :text, :widget => :keyconfig, :type => String, :label => @plugin._('キーバインド')},
       [{:kind => :pixbuf, :type => Gdk::Pixbuf, :label => @plugin._('機能名')},
        {:kind => :text, :type => String, :expand => true}],

source:core/plugin/shortcutkey/shortcutkey_listview.rb@7ea62dcb#L172

      def initialize(plugin, results)
        type_strict plugin => Plugin
        @plugin = plugin
        super(::Gtk::TreeModelFilter.new(::Gtk::TreeStore.new(::Gdk::Pixbuf, String, Symbol)))
        model.set_visible_func{ |model, iter|