diff --git a/crates/app/app.rs b/crates/app/app.rs
index 5b4c74d4..b7be6127 100644
--- a/crates/app/app.rs
+++ b/crates/app/app.rs
@@ -216,16 +216,26 @@ impl App {
 }
 
 fn render_dsl <'t, S> (state: &'t S, src: &str) -> Box<dyn Render<TuiOut>>
-where S: DslSymNs<'t, Box<dyn Render<TuiOut>>> + DslExpNs<'t, Box<dyn Render<TuiOut>>>
+    where S: DslSymNs<'t, Box<dyn Render<TuiOut>>> + DslExpNs<'t, Box<dyn Render<TuiOut>>>
 {
-    if let Ok(Some(value)) = state.from_sym(src) { return value }
-    if let Ok(Some(value)) = state.from_exp(src) { return value }
-    Box::new(Bsp::s(
-        Fill::x(Align::w(Tui::bold(true, Tui::fg_bg(Color::Rgb(240,160,100), Color::Rgb(48,00,00),
-            "Could not render:")))),
-        Max::x(40, Tui::fg_bg(Color::Rgb(250,200,120), Color::Rgb(32,00,00),
-            format!("{src}")))
-    ))
+    let sym_err: Option<Box<dyn Error>> = match state.from_sym(src) {
+        Ok(Some(value)) => return value,
+        Ok(None) => None,
+        Err(e) => Some(e),
+    };
+    let exp_err = match state.from_exp(src) {
+        Ok(Some(value)) => return value,
+        Ok(None) => None,
+        Err(e) => Some(e),
+    };
+    let (err_fg_1, err_bg_1) = (Color::Rgb(240, 160, 100), Color::Rgb(48, 0, 0));
+    let (err_fg_2, err_bg_2) = (Color::Rgb(250, 200, 120), Color::Rgb(32, 0, 0));
+    Box::new(Fill::x(col! {
+        Fill::x(Margin::x(1, Align::w(Tui::bold(true, Tui::fg_bg(err_fg_1, err_bg_1, "Could not render:"))))),
+        Fill::x(Margin::x(1, Tui::fg_bg(err_fg_2, err_bg_2, format!("{src}")))),
+        Fill::x(Margin::x(1, Tui::fg_bg(err_fg_2, err_bg_2, format!("{sym_err:?}")))),
+        Fill::x(Margin::x(1, Tui::fg_bg(err_fg_2, err_bg_2, format!("{exp_err:?}")))),
+    }))
 }
 
 dsl_exp!(|app: App, tail| -> Box<dyn Render<TuiOut>> {