Custom color palette when changing themes

### Compositor

- [ ] Niri
- [x] Hyprland
- [ ] MangoWC (dwl)
- [ ] Sway
- [ ] Other (specify below)

### Distribution

Arch

### dms doctor -v

_No response_

### Description

Hi everyone,

Currently when switching themes dms dank16 command generates color palette. When I switch to Catppuccin theme it generate random palette for terminal emulators.

Is there's any simple way to use custom (an actually catppuccin) color palette instead of random generated? I understand I can add colors in terminal config file, but I would like to setup custom colors for each theme, so switching between themes it actually change also terminal color palette.

Thanks!

### Solutions Tried

_No response_

### Configuration Details

_No response_

### Screenshots/Recordings

_No response_

Start by tracing the dms dank16 theme-switching flow and where terminal color palettes are generated. Determine how theme-specific custom palettes could be configured and applied when switching themes. Done means selecting the Catppuccin theme applies its intended terminal palette instead of a randomly generated one.

Written by the indexing model from the issue text.