Revise slides 8 and 9.

src/slide/s8_watercolor.rs

@@ -223,7 +223,7 @@ impl Slide for Watercolor {
         Frame::none().margin(Margin::same(20.0)).show(ui, |ui| {
             ui.heading("Generative Image Processing");
 
-            if let &WatercolorState::Triangles {start, ..} = &self.state {
+            if let &WatercolorState::Triangles { start, .. } = &self.state {
                 fade_in(ui, start, |ui| {
                     ui.add_space(ui.available_height() - 50.0);
                     ui.centered_and_justified(|ui| {

src/slide/s9_conclusion.rs

+use crate::egui::text::LayoutJob;
 use crate::egui::Ui;
 use crate::slide::Slide;
 use eframe::egui::style::Margin;
-use eframe::egui::Frame;
+use eframe::egui::{FontFamily, FontId, Frame, Sense, Shape, Stroke, TextFormat};
+use eframe::epaint::TextShape;
 
 #[derive(Default)]
 pub struct Conclusion {}
@@ -15,7 +17,42 @@ impl Slide for Conclusion {
         Frame::none().margin(Margin::same(20.0)).show(ui, |ui| {
             ui.heading("Conclusion");
             ui.add_space(8.0);
-            ui.label("Oh by the way, this entire cartoon was rendered by code!");
+
+            let font_size = 30.0;
+            let color = ui.style().visuals.widgets.noninteractive.fg_stroke.color;
+            let mut job = LayoutJob::default();
+            job.append(
+                "In the spirit of generative art, ",
+                0.0,
+                TextFormat {
+                    font_id: FontId::new(font_size, FontFamily::Proportional),
+                    color,
+                    ..Default::default()
+                },
+            );
+            job.append(
+                "this entire cartoon was rendered by code",
+                0.0,
+                TextFormat {
+                    font_id: FontId::new(font_size, FontFamily::Monospace),
+                    color,
+                    underline: Stroke::new(1.5, color),
+                    ..Default::default()
+                },
+            );
+            job.append(
+                "!",
+                0.0,
+                TextFormat {
+                    font_id: FontId::new(font_size, FontFamily::Proportional),
+                    color,
+                    ..Default::default()
+                },
+            );
+            let galley = ui.fonts().layout_job(job);
+            let (rect, _) = ui.allocate_exact_size(galley.size(), Sense::hover());
+            ui.painter()
+                .add(Shape::Text(TextShape::new(rect.left_top(), galley)));
         });
     }
 }