ḃ & ḋ: dot above should be centred over bowl

Irish now uses an added ‘h’ to mark lenition, but historically it used a dot above the letter and this is still sometimes used. This dot was always centred over the bowl of **bcdp** (ḃċḋṗ) but Source Serif centres it over the stem of **b** and **d**. This looks very odd when setting Irish text.

Source Code also centres these over the stem, but Source Sans centres over the bowl.

As far as I can tell these two letters (ḃ & ḋ) are only used in Irish and ISO 259 Romanization of Hebrew (1984), which has been superseded by ISO 259-2 & 259-3 which don’t use dotted b & d.

Below are some examples of some Gaelic & non-Gaelic fonts. Could this be changed?