diff --git a/src/window/vip/utils.rs b/src/window/vip/utils.rs
index 76df3bf..ef603df 100644
--- a/src/window/vip/utils.rs
+++ b/src/window/vip/utils.rs
@@ -3,12 +3,12 @@ use egui::{Color32, Image, ImageSource, Response, Sense, TextureOptions, Ui, Wid
 pub const GENERIC_PALETTE: [u8; 4] = [0, 32, 64, 128];
 
 pub fn shade(brt: u8, color: Color32) -> Color32 {
-    let corrected = if brt & 0x80 != 0 {
-        255
+    let corrected = if brt > 132 {
+        255.0
     } else {
-        (brt << 1) | (brt >> 6)
+        (brt as f32 * 255.0 / 133.0).round()
     };
-    color.gamma_multiply(corrected as f32 / 255.0)
+    color.gamma_multiply(corrected / 255.0)
 }
 
 pub fn generic_palette(color: Color32) -> [Color32; 4] {