diff --git a/src/layout/text.rs b/src/layout/text.rs
index 377c800..63c018d 100644
--- a/src/layout/text.rs
+++ b/src/layout/text.rs
@@ -118,6 +118,7 @@ impl TextData {
                         let pos = (x as i32 + pos.left, y as i32 + pos.top);
                         if let Some(pixel) = pixels.get_mut(&pos) {
                             for i in 0..4 {
+                                // TODO: no clue if proper alpha blending should be done
                                 pixel[i] = color[i].saturating_add(pixel[i]);
                             }
                         } else {