diff --git a/decisions/perception.md b/decisions/perception.md
index fe60b0d88..ea810b364 100644
--- a/decisions/perception.md
+++ b/decisions/perception.md
@@ -464,7 +464,8 @@ How the player observes and interacts with the world: camera, fog, line-of-sight
 - **Icon vocabulary (v0.1):**
   - Inventory item silhouettes: 3–4 items at 40×40px (manifest, access token, comm log)
   - Perception mode indicators: 2–3 icons at 20×20px (deferred until #315 specs the modes)
-  - Stance indicators: text labels (`WALK`, `CAREFUL`, `SPRINT`, `CROUCH`) at Michroma 11px — icons deferred to v0.2
+  - Stance indicators: 4 icons at 20×20px (WALK, CAREFUL, SPRINT, CROUCH) — delivered Sprint 32 alongside text labels. Icons supplement labels; text remains primary affordance.
+  - Interaction prompt icons: 4 icons at 16×16px (talk, observe, follow, examine) — delivered Sprint 32. Supplement interaction verb text per insert HUD wireframe §9.
   - Border arrows and geometric markers (diamonds, dots, squares): drawn as primitives, not icons
 - **Authoring constraints:** 1px stroke weight base (scaled to 2px for `lattice_augmented` via parameter), `#c8d0e0` as design reference color (runtime-replaceable), minimal anchor points, no decorative curves.
 - **Calibration reference:** Phosphor Light (MIT) — not for use, but for evaluating small-size readability of custom shapes during authoring. If a custom icon doesn't read as cleanly as a Phosphor Light equivalent at 16px, simplify it.
diff --git a/docs/design/icon-set-v01.md b/docs/design/icon-set-v01.md
index b44be05d6..056a4480d 100644
--- a/docs/design/icon-set-v01.md
+++ b/docs/design/icon-set-v01.md
@@ -126,7 +126,7 @@ icon_material.set_shader_parameter("tint_color", Color("#c8d0e0"))
 icon_node.material = icon_material
 ```
 
-The `icon_tint.gdshader` (to be authored by client team) multiplies the SVG's existing stroke color by the `tint_color` parameter. Since all SVGs use `#c8d0e0` as their stroke, the default parameter leaves them unchanged; swapping the parameter recolors them at runtime.
+The `icon_tint.gdshader` (to be authored by client team, ticket #818) multiplies the SVG's existing color by the `tint_color` parameter. Must handle both stroke-based icons (most) and fill-based icons (health cross). Since all SVGs use `#c8d0e0` as their base color, the default parameter leaves them unchanged; swapping the parameter recolors them at runtime.
 
 ### 3.3 Sizing at non-native resolutions
 
diff --git a/spikes/heightmap-pipeline/kallast_terrain.npy b/spikes/heightmap-pipeline/kallast_terrain.npy
deleted file mode 100644
index 329abbb9e..000000000
Binary files a/spikes/heightmap-pipeline/kallast_terrain.npy and /dev/null differ
diff --git a/tooling/planet-gen/body_definition_parser.py b/tooling/planet-gen/body_definition_parser.py
index d961cd8c6..5cc6ca161 100644
--- a/tooling/planet-gen/body_definition_parser.py
+++ b/tooling/planet-gen/body_definition_parser.py
@@ -456,6 +456,8 @@ def _build_body_def(
         "barren":    None,
     }
     atmo_color = atmo_colors.get(planet_class)
+    if atmo_density == "none":
+        atmo_color = None  # no atmosphere = no rim glow
     atmo_color = ov.get("atmosphere_color", atmo_color)
 
     # ── Land fraction ─────────────────────────────────────────────────────
diff --git a/tooling/planet-gen/scaffold_bodies.py b/tooling/planet-gen/scaffold_bodies.py
index c4251939e..a2ed15434 100644
--- a/tooling/planet-gen/scaffold_bodies.py
+++ b/tooling/planet-gen/scaffold_bodies.py
@@ -99,7 +99,7 @@ def _body_prose(bd: dict, system_dir: Path) -> str:
     # Profile table
     lines.append("## Profile")
     lines.append("")
-    is_gas = pclass in ("gas_giant",)
+    is_gas = pclass in ("gas_giant", "gas_giant_ringed")
 
     lines.append("| | |")
     lines.append("|---|---|")
diff --git a/wiki/star-systems/GJ-144/bodies/GJ144g-2/index.md b/wiki/star-systems/GJ-144/bodies/GJ144g-2/index.md
index 999603d86..a2c15a1cd 100644
--- a/wiki/star-systems/GJ-144/bodies/GJ144g-2/index.md
+++ b/wiki/star-systems/GJ-144/bodies/GJ144g-2/index.md
@@ -17,10 +17,7 @@ physical:
   gravity_g: 0.08
   oblateness: 0.0029
   atmosphere: none
-  atmosphere_color:
-  - 0.75
-  - 0.88
-  - 1.0
+  atmosphere_color: null
 terrain:
   land_fraction: 0.837
   polar_ice_lat: 0.177