Subject: Re: bug#50798: 28.0.50; Tab line close button is off-center until it is highlighted with the mouse

From: Eli Zaretskii <[email-masked]>
Date: Mon, 27 Sep 2021 21:40:03 +0300

> From: Juri Linkov <[email-masked]>
> Cc: [email-masked],  [email-masked],  [email-masked]
> Date: Mon, 27 Sep 2021 18:39:13 +0300
> 
> The problem is that hovering mouse over the text property 'mouse-face'
> set to 'tab-line-highlight' that contains ':inherit' applies its face
> attributes such as :box :line-width twice thus shifting the image upwards.

Sounds like a potential bug.  Hod did you see that these attributes
were applied twice?  And why applying the same attribute twice causes
effects that are different from applying it once?