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Use AutoCAD value steps in the ACI index palette (#1732)

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Found while testing crates/color/src/lib.rs:159

Co-authored-by: Claude Haiku 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-24 01:49:16 -04:00
committed by GitHub
co-authored by Claude Haiku 5.5
parent 8dd8635e10
commit 620e6a664c
1 changed files with 7 additions and 3 deletions
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crates/color/src/lib.rs
+7 -3
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@@ -156,7 +156,7 @@ fn build_palette() -> [Rgb; 256] {
for (slot, c) in p.iter_mut().zip(base) {
*slot = c;
}
let values = [255.0, 165.0, 127.0, 76.0, 38.0];
let values = [255.0, 204.0, 153.0, 127.0, 76.0];
for i in 10..250usize {
let hue = (i - 10) / 10; // 0..24, 15° each
let sub = i % 10;
@@ -238,8 +238,12 @@ mod tests {
assert_eq!(aci_rgb(1), Rgb(255, 0, 0));
assert_eq!(aci_rgb(10), Rgb(255, 0, 0));
assert_eq!(aci_rgb(11), Rgb(255, 127, 127));
assert_eq!(aci_rgb(12), Rgb(165, 0, 0));
assert_eq!(aci_rgb(13), Rgb(165, 82, 82));
assert_eq!(aci_rgb(12), Rgb(204, 0, 0));
assert_eq!(aci_rgb(13), Rgb(204, 102, 102));
assert_eq!(aci_rgb(14), Rgb(153, 0, 0));
assert_eq!(aci_rgb(15), Rgb(153, 76, 76));
assert_eq!(aci_rgb(16), Rgb(127, 0, 0));
assert_eq!(aci_rgb(18), Rgb(76, 0, 0));
assert_eq!(aci_rgb(20), Rgb(255, 63, 0));
assert_eq!(aci_rgb(30), Rgb(255, 127, 0));
assert_eq!(aci_rgb(50), Rgb(255, 255, 0));