Created attachment 708337 [details] mozc-properties.png See attached screen shots: Top left screen shot: ===================== - gnome-shell 3.7.91 - ibus-mozc input method selected. - The titles of the properties are empty - The properties itself are visible though Top right screen shot: ====================== - gnome-shell 3.7.91 - ibus-anthy input method selected - the property titles are visible, one sees: 入力モード (あ) ▼ ● ひらがな カタカナ ... Bottom left screen shot: ======================== - kde4 - ibus-mozc input method selected - The titles of the properties show orange icons, the title of the property for the input mode shows an icon with a white あ on orange ground Bottom right screen shot: ========================= - xfce - ibus-mozc input method selected - The titles of the properties show orange icons, the title of the property for the input mode shows an icon with a white あ on orange ground (same as in KDE) So it looks like ibus-mozc only puts icons into the property titles, no text. And gnome-shell cannot show the icons, only text, which is not there. So nothing is displayed.
Created attachment 708338 [details] katakana-selected.png How ibus-mozc, ibus-anthy, and ibus-kkc look like when katakana input mode is selected: Top left screen shot: ibus-mozc, gnome-shell 3.7.91 Top right screen shot: ibus-mozc, xfce Bottom left screen shot: ibus-anthy, gnome-shell 3.7.91 Bottom right screen shot: ibus-kkc, gnome-shell 3.7.91 I.e.: - ibus-anthy keeps the title of the property menu constant but changes the text in the panel from あ to ア to indicate the katakana input mode. - ibus-kkc keeps the text in the panel but changes the title of the property menu from あ to ア to indicate the katakana input mode. - ibus-mozc keeps the text in the panel and changes the *icon* in the property menu, as can be seen in the xfce screen shot on the top right. As gnome-shell cannot display the icons, no difference can be seen in gnome-shell.
I think this is because mozc doesn't just support that property (yet). this needs to be fixed in upstream.
should be fixed in mozc-1.6.1187.102-4