Feature Request: Expanded Color & Skin Replacement Functionality (Multi-Target, Skin-Only, No-Block Required)

[SiskSjet]

This request is based on detailed feedback from Steam Workshop users regarding improvements to the current color/skin replacement workflow.

Requested functionality:

1. Apply replacements without requiring a block placed on the grid
   Users find the block-placement requirement rigid and less convenient than single-screen solutions.

2. Separate control for color and skin randomization/replacement
   Ability to randomize/apply only skins without affecting colors, and vice-versa.

3. Target specific block types for replacement
   Example: change all conveyors to orange with a specified skin while windows receive a different skin.

4. Replace skins only (no color change)
   Useful for cosmetic updates without altering build palette.

5. Allow multiple color/skin replacements within the same grid
   Example scenario:

   • Black + Sci-Fi → White + Clean
   • Red + Carbon Fibre → Blue + Weldless
   • Yellow + Retrofuture → Orange + Glamour

This feature set would significantly improve usability and reduce friction compared to other available solutions.