diff --git a/ggdt/src/graphics/indexed/mod.rs b/ggdt/src/graphics/indexed/mod.rs
index 248791f..10eec38 100644
--- a/ggdt/src/graphics/indexed/mod.rs
+++ b/ggdt/src/graphics/indexed/mod.rs
@@ -1,3 +1,6 @@
+//! This module and all sub-modules contain graphics functionality that uses indexed colours. That is, each pixel
+//! is a `u8` and treated as index into a [`Palette`], so 256 maximum colours are possible.
+
 pub use self::bitmap::*;
 pub use self::blendmap::*;
 pub use self::font::*;
diff --git a/ggdt/src/graphics/mod.rs b/ggdt/src/graphics/mod.rs
index b166bd8..5003e3d 100644
--- a/ggdt/src/graphics/mod.rs
+++ b/ggdt/src/graphics/mod.rs
@@ -4,3 +4,4 @@ pub use self::bitmapatlas::*;
 pub mod basicimage;
 pub mod bitmapatlas;
 pub mod indexed;
+pub mod rgb;
diff --git a/ggdt/src/graphics/rgb/mod.rs b/ggdt/src/graphics/rgb/mod.rs
new file mode 100644
index 0000000..e8d5bb9
--- /dev/null
+++ b/ggdt/src/graphics/rgb/mod.rs
@@ -0,0 +1,2 @@
+//! This module and all sub-modules contain graphics functionality that uses 32-bit colour data. That is, each pixel
+//! is a `u32` and contains full RGBA information.