Subject: bug#41200: Displaying a tooltip with x-show-tip gets very slow as more faces are defined

From: Clément Pit-Claudel <[email-masked]>
Date: Sun, 17 May 2020 21:19:50 -0400

On 17/05/2020 17.59, Juri Linkov wrote:
>> +  :group 'basic-faces)
>> +
>> +  :group 'basic-faces)
>>
>> -  :group 'tab-bar-faces)
>> -
>> -  :group 'tab-line-faces)
> 
> Could these faces belong to both groups?
> 
>   :group 'basic-faces
>   :group 'tab-bar-faces

Yup, but that won't work well if the face is customized before the group is defined, right? Maybe the trick would be to add the group to the face when tab-bar.el and tab-bar-line.el are loaded?