[Bug] Custom heading color is not applied in previews.

**Describe the bug** Custom heading color is not applied in previews. Instead, headings are in the original bland color. **To Reproduce** Steps to reproduce the behavior: 1. Turn on "Custom heading color" 2. type " ## heading" (It should be colorful based on the color scheme) 3. preview said heading in outline pane/ backlink pane/ anywhere 4. See error **Expected behavior** Said heading is the same color as in edit/reading mode **Screenshots** <img width="1919" height="1018" alt="Image" src="https://github.com/user-attachments/assets/5164aeb3-f0c4-454a-bd1c-7928c6f73630" /> **Additional context** SYSTEM INFO: Obsidian version: v1.9.12 Installer version: v1.8.9 Operating system: Windows 11 Home 10.0.26100 Login status: logged in Language: en Catalyst license: none Insider build toggle: off Live preview: on Base theme: adapt to system Community theme: AnuPpuccin v1.5.0 Snippets enabled: 0 Restricted mode: off Plugins installed: 1 Plugins enabled: 1 1: Style Settings v1.0.9