diff --git a/diagrams/tidy-data.graffle b/diagrams/tidy-data.graffle
index 05399f1..7e9e990 100644
Binary files a/diagrams/tidy-data.graffle and b/diagrams/tidy-data.graffle differ
diff --git a/diagrams/tidy-data/cell-values.png b/diagrams/tidy-data/cell-values.png
index bb87cb1..71bd640 100644
Binary files a/diagrams/tidy-data/cell-values.png and b/diagrams/tidy-data/cell-values.png differ
diff --git a/diagrams/tidy-data/variables.png b/diagrams/tidy-data/variables.png
index 80e774b..dcbf166 100644
Binary files a/diagrams/tidy-data/variables.png and b/diagrams/tidy-data/variables.png differ