Launchpad currently recommends translating gnome-font-viewer in Ubuntu Bionic.

Template "gnome-font-viewer" in Ubuntu Bionic package "gnome-font-viewer"

Language Status Untranslated Need review Changed Last Edited By
Cherokee 100.00  100.0% untranslated 28 28 0 0
Dakota 100.00  100.0% untranslated 28 28 0 0
Hawaiian 100.00  100.0% untranslated 28 28 0 0
Inuktitut 100.00  100.0% untranslated 28 28 0 0
Lakota 100.00  100.0% untranslated 28 28 0 0
Ojibwe 100.00  100.0% untranslated 28 28 0 0
Spanish 000.00  100.0% translated 0 0 6 6 2018-02-16 03:57:59 UTC 2018-02-16 Daniel Mustieles
Tlingit 100.00  100.0% untranslated 28 28 0 0
Yiddish 100.00  100.0% untranslated 28 28 0 0
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Key to this table: “Unchanged” means Translated
and “untranslated” means just that, Untranslated

Other versions of gnome-font-viewer in Ubuntu