diff --git a/todo.md b/todo.md
index 5938c9ff..4f5fb661 100644
--- a/todo.md
+++ b/todo.md
@@ -2,6 +2,8 @@
 * Add more pixmap fonts
 * Design ui system
 * Add color utilities
-* gfx::painter should support normals & minimal lighting (maybe split into separate 2D & 3D painters?)
+* gfx::painter should be 2D only
+* gfx: think of some concepts like Renderable, Renderer, and how to wire those correctly
+* gfx: design & implement simple rendering pipelines
 * pcg: add clean Generator, Sampler & Pixmap processor concepts, uniformize interfaces, be type & dimension agnostic when possible
 * pcg: add more vector & point distributions