fix-solid-color-sync

[Garold86]

What
In the UDP notifier receive path (parseNotifyPacket, wled00/udp.cpp), incoming colors were applied only to the main segment, while effect/speed/intensity/palette were applied to all selected segments. So color changes never reached non-main selected segments on receiving instances. Most visible with the Solid effect, where colors[0] is the entire output.

Why / how
Adds color application to the existing per-selected-segment sync loop, mirroring how palette is already handled and reusing the same version-gating as the main-segment color block.

Notes
The original main-segment color block is kept (covers an unselected main segment + CCT). Segment::setColor() early-returns when the value is unchanged, so no double transition.
Only runs when "Segment options" sync is off; the receiveSegmentOptions path already handles per-segment color.
No platformio.ini changes. Built and tested on hardware (ESP32-Ethernet) — Solid color now syncs across all selected segments on all instances.

Fixes #5705

Summary by CodeRabbit

• Bug Fixes
  • Improved sync behavior so incoming color updates are applied more reliably.
  • Ensured selected active segments receive the updated RGBW and related color values, including version-dependent white/CCT handling.
  • Expanded the simple effect sync path so it also responds to color changes when no selection filtering is active.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: f79e4fdf-48a4-4f3a-bbff-67189c0780ee

📥 Commits

Reviewing files that changed from the base of the PR and between 19e268c and fa292f4.

📒 Files selected for processing (1)

• wled00/udp.cpp

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Walkthrough

The UDP notification receive path now treats color updates like effect and palette updates in the simple sync branch, and applies incoming color bytes to all selected active segments.

Changes

UDP sync color application

Layer / File(s)	Summary
Simple sync branch and color propagation wled00/udp.cpp	The UDP receive path now enters the simple effect sync block for color notifications and applies incoming primary, secondary, and tertiary colors to selected active segments in that path.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Suggested labels

bug

Suggested reviewers

• softhack007
• DedeHai

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title is concise and directly describes the main change: fixing solid color sync across segments.
Linked Issues check	✅ Passed	The change addresses #5705 by applying incoming color updates to all selected segments when Segment options sync is off.
Out of Scope Changes check	✅ Passed	The only code changes match the sync color fix described in the issue summary, with no unrelated changes noted.

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