Add support for custom party parrot colors

[mayberryzane]

Feature Request

Description

Currently, the party parrot service only supports the default rainbow color scheme. It would be great to allow users to specify custom color palettes for their party parrots.

Use Case

Users might want to:

• Match their brand colors
• Create themed party parrots for special occasions
• Generate monochrome or limited-palette parrots for accessibility

Proposed Solution

Add an optional colors parameter to the API that accepts an array of hex color codes:

{
  "colors": ["#FF0000", "#00FF00", "#0000FF"],
  "animation_speed": "normal"
}

Alternative Solutions

• Provide preset color themes (e.g., "corporate", "pastel", "neon")
• Allow CSS filter parameters to modify the existing colors

Additional Context

This feature would make the party parrot service more versatile and useful for a wider range of applications.