diff --git a/eeshow/gui/render.c b/eeshow/gui/render.c
index ebdab4e..3d3acc8 100644
--- a/eeshow/gui/render.c
+++ b/eeshow/gui/render.c
@@ -43,7 +43,7 @@ void redraw(const struct gui_ctx *ctx)
 }
 
 
-/* ----- Rendering --------------------------------------------------------- */
+/* ----- Draw to screen ---------------------------------------------------- */
 
 
 static void hack(const struct gui_ctx *ctx, cairo_t *cr)
@@ -98,6 +98,9 @@ static gboolean on_draw_event(GtkWidget *widget, cairo_t *cr,
 }
 
 
+/* ----- Pre-rendering ----------------------------------------------------- */
+
+
 void render_sheet(struct gui_sheet *sheet)
 {
 	char *argv[] = { "gui", NULL };
@@ -150,6 +153,9 @@ void render_delta(struct gui_ctx *ctx)
 }
 
 
+/* ----- Setup ------------------------------------------------------------- */
+
+
 void render_setup(struct gui_ctx *ctx)
 {
 	g_signal_connect(G_OBJECT(ctx->da), "draw",