Not all known default matchrate Icons are shown

Translate5 knows the following matchrate types by default:

self::TYPE_TM,
self::TYPE_MT,
self::TYPE_TERM_COLLECTION,
self::TYPE_INTERNAL_FUZZY_AVAILABLE,
self::TYPE_SOURCE,
self::TYPE_AUTO_ALIGNED,
self::TYPE_AUTO_PROPAGATED,
self::TYPE_DOCUMENT_MATCH,
self::TYPE_INTERNAL_FUZZY_AVAILABLE,
self::TYPE_MISSING_SOURCE_MRK,
self::TYPE_MISSING_TARGET_MRK,
self::TYPE_INTERACTIVE,
self::TYPE_UNKNOWN,

but only for TM, MT, TERM_COLLECTION, SOURCE and TYPE_INTERNAL_FUZZY_AVAILABLE an icon was shown.