Local or ephemeral palette doesn't seem useful. People can just create multiple global palettes and use them on conditions.
Besides, using fiber-local or even thread-local can have unexpected results on a site with busy traffic and server with connection thread pool. For example, if someone to check first whether Theme::Local.palettes[:a_palette_name] exists or not before invoking create_palette and decided not to create the palette if exists (for some crazy reason), he/she will use the palette defined in the previous request that creates a local palette too. But this case is very unlikely. So the main reason for deprecation is the lack of usefulness.
Local or ephemeral palette doesn't seem useful. People can just create multiple global palettes and use them on conditions.
Besides, using fiber-local or even thread-local can have unexpected results on a site with busy traffic and server with connection thread pool. For example, if someone to check first whether
Theme::Local.palettes[:a_palette_name]exists or not before invokingcreate_paletteand decided not to create the palette if exists (for some crazy reason), he/she will use the palette defined in the previous request that creates a local palette too. But this case is very unlikely. So the main reason for deprecation is the lack of usefulness.