Alpha letters larger in Libertinus Serif Italic for Greek extended

[MaghSamana]

Hello, almost all alpha letters (except the alpha without any hyphenation and the regular alpha with acute) appear larger than the rest of the letters in a text, using Greek extended (Unicode range: 1F00-1FFF).

[alerque]

Can you please copy/paste some actual text into a comment on this issue? Some that you think is fine + the set that you think is too large.

Also what version of the font are you using?

[kimmus]

This might help. The top line consists of characters U+03B1 and 03AC from the Greek and Coptic block. The second and third lines contain all the lowercase alpha characters in the Greek Extended block. The characters in the top line use a distinctly narrower base character than the others. Thirteen of the wider character occupy about the same space as fifteen of the narrower one. The font version is 7.040.

[alerque]

@kimmus It would still be helpful to have some raw UTF-8 strings in this issue so I can test them myself. Also which width do you consider correct?‌ The narrow one?

[kimmus]

I’m not the original poster, but in my opinion: αά (good) ἀἁἂἃἄἅἆἇὰάᾀᾁᾂᾃᾄᾅᾆᾇᾰᾱᾲᾳᾴᾶᾷ (less good)

[MaghSamana]

Can you please copy/paste some actual text into a comment on this issue? Some that you think is fine + the set that you think is too large.

Also what version of the font are you using?

The latest, I think, 7.040. I recently noticed the issue -and it only happens in italics. I'll paste the same text (from the image at the beginning of this thread) here, but I don't know how it will appear.

Εἴτε εἶναι κείνη τοῦ Ἀστραίου γένος, ποὺ οἱ ἀρχαῖοι λέγουν ὅτι εἶναι ὁ πατὴρ τῶν ἄστρων, εἴτε τέκνον ἄλλου, ἂς εἶναι ἀνεμπόδιστος ὁ δρόμος της.