Overriding colors for a specific style

[plankan39]

I have some color overrides for background colors that I want to use for the "tokyonight-night" theme, but I do not want them to be applied when I switch to "tokyonight-day". In my current setup I set the color overrides with on_colors like:

    opts = {
      style = "night",
      light_style = "day",
      on_colors = function(colors)
        colors.bg = "#242424"
        ...
      end,
    },

which breaks the "day" style completely.
Is there a way to configure color overrides so that it is only applied to a specific style?