Added motion planel for raw/pitch/roll and acceleration. Consolidated all colors into one stylesheet in themes/palette.gd.

docs/motion_panel.md

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+# Motion instrument
+
+Instance `components/motion_panel.tscn`. Run `scenes/motion_demo.tscn` with F6 for simulated telemetry; pause the feed to preview stale status.
+
+```gdscript
+$MotionPanel.set_telemetry(
+	Vector3(roll_degrees, pitch_degrees, heading_degrees),
+	Vector3(momentum_x, momentum_y, momentum_z),
+	Vector3(accel_x, accel_y, accel_z)
+)
+```
+
+- Orientation: positive roll right side down, positive pitch nose up, heading clockwise from north (0–360°).
+- Body axes: X forward, Y right, Z down.
+- Angular momentum: kg·m²/s, distinct from gyroscope angular velocity.
+- Acceleration: m/s², with gravity removed upstream.
+
+Missing values show dashes; non-finite samples are rejected. After `stale_after_seconds` (default 2), the banner marks held values STALE. `acceleration_full_scale` sets plot limits; numeric values remain unclamped.
+
+Edit layout and Labels in the scene tree. Preserve scene-unique names used by `motion_panel.gd`. The four graphics use `motion_instrument.gd`; `radius_source` keeps the circles and Z scale aligned. Colors inherit the active theme; see [colors.md](colors.md).