Document v0.3.0 release changes

Author: Agentry433

CHANGELOG.md

@@ -4,6 +4,17 @@ All notable changes to this fork are documented here.
 
 The format is based on a simple chronological release history.
 
+## v0.3.0 - Classic Theme Conversion Workflow
+
+- Added an MVP converter for classic `theme.yaml` themes to SmartMonitor HID `.dat` themes.
+- Added GUI integration for converting classic framebuffer themes into SmartMonitor-compatible themes.
+- Generated editable SmartMonitor `.ui` projects are now preserved next to converted themes.
+- Added `Open/Edit UI` support for converted classic themes through linked `source_ui` metadata.
+- Added conversion support for backgrounds, static images, static text, number widgets, datetime widgets, progress bars, line graph fallbacks, and radial fallbacks.
+- Added scaling from classic theme canvas sizes to the SmartMonitor HID `480x320` target canvas.
+- Extended runtime mapping for RAM used/free/total, disk free, GPU memory, uptime hours, and additional classic-theme sensor aliases.
+- Reworked `configure.py` SmartMonitor action buttons into a two-row layout with shorter labels.
+
 ## v0.2.1 - Autostart and Broader Runtime Support
 
 - Added Linux user autostart support via `systemd --user`.