diff --git a/src/graphics.rs b/src/graphics.rs
index 138c79b..2ac3cf2 100644
--- a/src/graphics.rs
+++ b/src/graphics.rs
@@ -10,7 +10,8 @@ use crate::{state::State, App};
 #[derive(Clone, Copy, Zeroable, Pod, Debug)]
 pub struct Vertex {
     pub pos: [f32; 2],
-    pub color: [f32; 4]
+    pub color: [f32; 4],
+    pub effect: u32, // 0: None, 1: Grayscale, 2: Scaled, 3: Grayscale + Scaled
 }
 impl Vertex {
     const DESC: VertexBufferLayout<'static> = VertexBufferLayout {
diff --git a/src/shader.wgsl b/src/shader.wgsl
index e89bcfb..75a49da 100644
--- a/src/shader.wgsl
+++ b/src/shader.wgsl
@@ -12,7 +12,8 @@ struct VertexOutput {
 @vertex
 fn vs_main(
     @location(0) pos: vec2f,
-    @location(1) color: vec4f
+    @location(1) color: vec4f,
+    @location(2) effect: u32
 ) -> VertexOutput {
     var out: VertexOutput;
     out.color = color;
@@ -23,4 +24,4 @@ fn vs_main(
 @fragment
 fn fs_main(v: VertexOutput) -> @location(0) vec4f {
     return v.color;
-}
\ No newline at end of file
+}
diff --git a/src/state.rs b/src/state.rs
index 7e51f2a..f3e59f5 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -196,9 +196,6 @@ impl State {
 
         for (c, cd) in self.map.voronoi.iter_cells().zip(self.map.cells_data.iter()).filter(|(_,cd)| cd.kind != CellKind::Forest) {
             let mut color = cd.color();
-            if self.ui.kind_selected != Kind::Terrain && self.ui.kind_selected != Kind::None {
-                color = rgba_to_grayscale(color);
-            }
             if c.site() == self.selected_tile {
                 color[0] = (color[0]+0.4).clamp(0., 1.);
                 color[1] = (color[1]+0.4).clamp(0., 1.);
@@ -207,7 +204,7 @@ impl State {
             let vs = c.iter_vertices().collect::<Vec<_>>();
             let i = self.vertices.len() as u32;
             for v in vs.iter() {
-                self.vertices.push(Vertex { pos: [v.x as f32, v.y as f32], color });
+                self.vertices.push(Vertex { pos: [v.x as f32, v.y as f32], color, effect:2 });
             }
             for v in 1..(vs.len()-1) as u32 {
                 self.indices.push(i);
@@ -230,7 +227,7 @@ impl State {
             let vs = c.iter_vertices().collect::<Vec<_>>();
             let i = self.vertices.len() as u32;
             for v in vs.iter() {
-                self.vertices.push(Vertex { pos: [v.x as f32, v.y as f32], color });
+                self.vertices.push(Vertex { pos: [v.x as f32, v.y as f32], color, effect:2 });
             }
             for v in 1..(vs.len()-1) as u32 {
                 self.indices.push(i);
@@ -321,4 +318,4 @@ impl State {
             self.cells_entities.insert(cid, vec![eid]);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/state/entity.rs b/src/state/entity.rs
index 70e606f..34b1c22 100644
--- a/src/state/entity.rs
+++ b/src/state/entity.rs
@@ -63,31 +63,31 @@ impl Entity {
                         (
                             [
                                 // back left leg
-                                Vertex { pos: [-0.5, 0.3], color: dark },
-                                Vertex { pos: [-0.4 + (now.sin()*0.1), -0.7 + (now.cos().max(-0.5)*0.1)], color: dark },
-                                Vertex { pos: [-0.25, 0.1], color: dark },
+                                Vertex { pos: [-0.5, 0.3], color: dark, effect:2 },
+                                Vertex { pos: [-0.4 + (now.sin()*0.1), -0.7 + (now.cos().max(-0.5)*0.1)], color: dark, effect:2 },
+                                Vertex { pos: [-0.25, 0.1], color: dark, effect:2 },
 
                                 // back right leg
-                                Vertex { pos: [-0.5, 0.3], color },
-                                Vertex { pos: [-0.4 + ((now + 1.).sin()*0.1), -0.7 + ((now + 1.).cos().max(-0.5)*0.1)], color },
-                                Vertex { pos: [-0.25, 0.1], color },
+                                Vertex { pos: [-0.5, 0.3], color, effect:2 },
+                                Vertex { pos: [-0.4 + ((now + 1.).sin()*0.1), -0.7 + ((now + 1.).cos().max(-0.5)*0.1)], color, effect:2 },
+                                Vertex { pos: [-0.25, 0.1], color, effect:2 },
 
                                 // front left leg
-                                Vertex { pos: [0.3, 0.2], color: dark },
-                                Vertex { pos: [0.4 + ((now-1.).sin()*0.1), -0.7 + ((now-1.).cos().max(-0.5)*0.1)], color: dark },
-                                Vertex { pos: [0.5, 0.3], color: dark },
+                                Vertex { pos: [0.3, 0.2], color: dark, effect:2 },
+                                Vertex { pos: [0.4 + ((now-1.).sin()*0.1), -0.7 + ((now-1.).cos().max(-0.5)*0.1)], color: dark, effect:2 },
+                                Vertex { pos: [0.5, 0.3], color: dark, effect:2 },
 
                                 // front right leg
-                                Vertex { pos: [0.3, 0.2], color },
-                                Vertex { pos: [0.4 + ((now-2.).sin()*0.1), -0.7 + ((now-2.).cos().max(-0.5)*0.1)], color },
-                                Vertex { pos: [0.5, 0.3], color },
+                                Vertex { pos: [0.3, 0.2], color, effect:2 },
+                                Vertex { pos: [0.4 + ((now-2.).sin()*0.1), -0.7 + ((now-2.).cos().max(-0.5)*0.1)], color, effect:2 },
+                                Vertex { pos: [0.5, 0.3], color, effect:2 },
 
                                 // body
                                 // 3
-                                Vertex { pos: [-0.3, 0.], color },
-                                Vertex { pos: [0.4, -0.1], color },
+                                Vertex { pos: [-0.3, 0.], color, effect:2 },
+                                Vertex { pos: [0.4, -0.1], color, effect:2 },
                                 // 11
-                                Vertex { pos: [0.3, 0.4], color },
+                                Vertex { pos: [0.3, 0.4], color, effect:2 },
                             ],
                             [
                                 0,1,2,
@@ -104,31 +104,31 @@ impl Entity {
                         (
                             [
                                 // back left leg
-                                Vertex { pos: [-0.5, 0.3], color: dark },
-                                Vertex { pos: [-0.4, -0.75], color: dark },
-                                Vertex { pos: [-0.25, 0.1], color: dark },
+                                Vertex { pos: [-0.5, 0.3], color: dark, effect:2 },
+                                Vertex { pos: [-0.4, -0.75], color: dark, effect:2 },
+                                Vertex { pos: [-0.25, 0.1], color: dark, effect:2 },
 
                                 // back right leg
-                                Vertex { pos: [-0.5, 0.3], color },
-                                Vertex { pos: [-0.4, -0.75], color },
-                                Vertex { pos: [-0.25, 0.1], color },
+                                Vertex { pos: [-0.5, 0.3], color, effect:2 },
+                                Vertex { pos: [-0.4, -0.75], color, effect:2 },
+                                Vertex { pos: [-0.25, 0.1], color, effect:2 },
 
                                 // front left leg
-                                Vertex { pos: [0.3, 0.2], color: dark },
-                                Vertex { pos: [0.4, -0.75], color: dark },
-                                Vertex { pos: [0.5, 0.3], color: dark },
+                                Vertex { pos: [0.3, 0.2], color: dark, effect:2 },
+                                Vertex { pos: [0.4, -0.75], color: dark, effect:2 },
+                                Vertex { pos: [0.5, 0.3], color: dark, effect:2 },
 
                                 // front right leg
-                                Vertex { pos: [0.3, 0.2], color },
-                                Vertex { pos: [0.4, -0.75], color },
-                                Vertex { pos: [0.5, 0.3], color },
+                                Vertex { pos: [0.3, 0.2], color, effect:2 },
+                                Vertex { pos: [0.4, -0.75], color, effect:2 },
+                                Vertex { pos: [0.5, 0.3], color, effect:2 },
 
                                 // body
                                 // 3
-                                Vertex { pos: [-0.3, 0.], color },
-                                Vertex { pos: [0.4, -0.1], color },
+                                Vertex { pos: [-0.3, 0.], color, effect:2 },
+                                Vertex { pos: [0.4, -0.1], color, effect:2 },
                                 // 11
-                                Vertex { pos: [0.3, 0.4], color },
+                                Vertex { pos: [0.3, 0.4], color, effect:2 },
                             ],
                             [
                                 0,1,2,
@@ -218,4 +218,4 @@ impl Entity {
             None
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/state/ui.rs b/src/state/ui.rs
index 7cba175..33d7f39 100644
--- a/src/state/ui.rs
+++ b/src/state/ui.rs
@@ -2,6 +2,7 @@ use winit::event::{Touch, TouchPhase, WindowEvent};
 use crate::graphics::Vertex;
 
 const BOTTOM_TAB_BAR_HEIGHT: f32 = 0.1;
+const SECONDARY_COLOR: [f32; 4] = [255./84., 255./33., 255./32., 1.];
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Kind {
@@ -17,7 +18,7 @@ pub struct UI {
 impl UI {
     pub fn new() -> Self {
         Self {
-            kind_selected: Kind::None,
+            kind_selected: Kind::Entities,
             touch: None
         }
     }
@@ -64,6 +65,8 @@ impl UI {
         }
     }
     pub fn render(&self, vertices: &mut Vec<Vertex>, indices: &mut Vec<u32>) {
-        
+        //let vs = [
+        //    Vertex { color: SECONDARY_COLOR, pos: [] }
+        //];
     }
-}
\ No newline at end of file
+}