userChrome not working
I would like to customize styling for recurring events in Calendar (115.11.1 on MacOS) without using extensions/add-ons. I enabled userChrome.css (`toolkit.legacyUserProfileCustomizations.stylesheets`) and the “has:” selector (`layout.css.has-selector.enabled`). In my userChrome.css, I added styles:
li:has([alt*="Recurring"]) { background-color:grey !important; padding:1rem !important; }
li:has(*[alt*="Recurring"]) { background-color:yellow !important; padding:1rem !important; }
Unfortunately, this seems to have no effect upon restarting Thunderbird. However, when I open Developer Toolbox (`Tools > Developer Toolbox > Developer Toolbox > Inspector` tab) suddenly everything works and the stylesheets are applied, but only until Thunderbird is shut down. Weirdly, other custom styles in userChrome.css work ok.
Is this intended behavior or a bug?
Alle antwurden (2)
I cannot advise on the proper CSS to resolve your issue, but I can advise you that this is not a bug. I say that because use of userChrome.css is not officially supported.
Thank you for your reply. I do realize that user styling via userChrome is not officialy supported. However, I sucessfully tested the CSS style in Firefox by copying the relevant elements form TB inspector. What is more, my experience with Thunderbird is that userChrome works great in Supernova. What I am trying to understand is the behaviour of some aspects of the style not being applied straight away.
Jo moatte jo oanmelde by jo account om op berjochten te antwurdzjen. Stel in nije fraach as jo noch gjin account hawwe.