This is more of a complain in case that the function is not there at all. But is not possible to have words that use capitalization when spanish language is used? For example on cards that use hourly information instead of using PM it uses p.m for spanish. Or with clock card for example instead of using Martes (Tuesday) it just uses martes.
It is a very little detail that I noticed and wanted to change but I don’t see any option anywhere.
Is this a custom card? Or is it wrong everywhere? If it is only in a custom card then you should try to contact the creator on github. If it is everywhere, then it is a translation issue.
If you are a native speaker, you could consider contributing to the translations:
The “rules” about capitalizing days of the week, months, and seasons are highly variable throughout Spanish-speaking Latin American; but, the last time I looked into it, using lower case is still more prevalent.
Indeed is not mandatory to actually capitalize stuff like months or weekdays in spanish, is possible to leave at least a feedback so capitalization over these stuff is an option like in OS configurations like Windows?