​Implement color-coding for saved workflows to improve organization.

### Feature Idea

**Description:**
Currently, when managing a large number of saved workflows, it can be challenging to quickly distinguish between different projects or versions based on text titles alone.
​I suggest adding a color-coding feature for workflow titles/labels. This would allow users to:
​Categorize by status: e.g., Green for "Final/Production," Red for "Experimental/Testing."
​Identify by project type: e.g., Blue for "Upscaling," Yellow for "Video Generation."
​Improve workflow efficiency: Quickly locate specific workflows in a long list through visual cues rather than reading every filename.

​**Proposed Solution:**
Add a simple color picker or a set of preset color tags in the "Save" dialog, which then displays the chosen color in the workflow manager or the title bar.

### Existing Solutions

_No response_

### Other

_No response_