diff --git a/content/textures.toml b/content/textures.toml
index c2ff824..ee1b947 100644
--- a/content/textures.toml
+++ b/content/textures.toml
@@ -17,7 +17,7 @@ file = "planet/luna.png"
 file = "projectile/blaster.png"
 
 [texture."ship::gypsum"]
-file = "ship/gypsum.png"
+file = "ship/gypsum2.png"
 
 [texture."ui::radar"]
 file = "ui/radar.png"
diff --git a/crates/content/src/part/texture.rs b/crates/content/src/part/texture.rs
index df8541a..79f8749 100644
--- a/crates/content/src/part/texture.rs
+++ b/crates/content/src/part/texture.rs
@@ -26,7 +26,6 @@ pub(crate) mod syntax {
 		pub file: PathBuf,
 	}
 
-	// TODO: loop mode
 	#[derive(Debug, Deserialize)]
 	pub struct FramesTexture {
 		pub frames: Vec<PathBuf>,
diff --git a/crates/render/src/vertexbuffer/types.rs b/crates/render/src/vertexbuffer/types.rs
index fa97add..4b2f18c 100644
--- a/crates/render/src/vertexbuffer/types.rs
+++ b/crates/render/src/vertexbuffer/types.rs
@@ -208,13 +208,9 @@ pub struct ParticleInstance {
 	/// Rotation matrix for this sprite, in world coordinates
 	pub rotation: [[f32; 2]; 2],
 
-	// TODO: docs: particle frames must all have the same size
-	// TODO: is transparency trimmed? That's not ideal for animated particles!
 	/// The height of this particle, in world units
 	pub size: f32,
 
-	// TODO: animated sprites
-	// TODO: texture aspect ratio
 	/// The time, in seconds, at which this particle was created.
 	/// Time is kept by a variable in the global uniform.
 	pub created: f32,
diff --git a/crates/world/src/objects/projectile.rs b/crates/world/src/objects/projectile.rs
index cedfa48..58e7a14 100644
--- a/crates/world/src/objects/projectile.rs
+++ b/crates/world/src/objects/projectile.rs
@@ -11,13 +11,13 @@ use galactica_render::ObjectSprite;
 /// A single projectile in the world
 #[derive(Debug)]
 pub struct ProjectileWorldObject {
-	/// TODO
+	/// This projectile's game data
 	pub projectile: object::Projectile,
 
-	/// TODO
+	/// This projectile's rigidbody
 	pub rigid_body: RigidBodyHandle,
 
-	/// TODO
+	/// This projectile's collider
 	pub collider: ColliderHandle,
 }
 
diff --git a/crates/world/src/objects/ship.rs b/crates/world/src/objects/ship.rs
index 52ec6fb..3570601 100644
--- a/crates/world/src/objects/ship.rs
+++ b/crates/world/src/objects/ship.rs
@@ -28,13 +28,13 @@ impl ShipControls {
 
 /// A ship instance in the physics system
 pub struct ShipWorldObject {
-	/// TODO
+	/// This ship's physics handle
 	pub physics_handle: ShipPhysicsHandle,
 
-	/// TODO
+	/// This ship's game data
 	pub ship: object::Ship,
 
-	/// TODO
+	/// This ship's controls
 	pub controls: ShipControls,
 }