Feature Request: Customizable Colors and CLI Toggles

[Sekhudin]

Hi! First of all, Hibiki looks really nice. I've been using it as a keystroke visualizer on Hyprland, and I really like the overall aesthetic.

I have a couple of feature requests/questions:

1. Custom background color

Would it be possible to customize the background color of the keystroke/bubble windows?

I noticed that font family, weight, and size can already be customized, which is great. It would be nice to have a similar level of customization for the background and text colors as well.

For example, something along the lines of:

[keystroke]
background = "#1e1e2e"
foreground = "#cdd6f4"

The exact configuration format is, of course, up to you.

2. CLI commands for toggling modes

Would it be possible to expose the toggle actions through the CLI?

Something like:

hibiki --keystroke-toggle
hibiki --bubble-toggle

This would make Hibiki much easier to integrate with compositor keybindings.

For example, on Hyprland I could have:

bind = SUPER, K, exec, hibiki --keystroke-toggle
bind = SUPER, B, exec, hibiki --bubble-toggle

This would also make it possible to control Hibiki without interacting with the system tray or settings UI.

I'm mainly interested in using Hibiki as a lightweight, compositor-integrated key caster, so having CLI-accessible controls would be really useful.

Thanks for the great project!