Strengthen palette roles and source selection contrast

crates/oa-desktop/src/highlight.rs

@@ -61,13 +61,13 @@ impl Highlighter for ArcadiaHighlighter {
 
 pub fn format(class: &TokenClass, _theme: &Theme) -> Format<Font> {
     let color = match class {
-        TokenClass::Keyword => Color::from_rgb8(118, 62, 160),
-        TokenClass::Identifier => Color::from_rgb8(20, 93, 139),
-        TokenClass::String => Color::from_rgb8(24, 113, 79),
-        TokenClass::Number => Color::from_rgb8(163, 78, 30),
-        TokenClass::Comment => Color::from_rgb8(111, 121, 132),
-        TokenClass::Error => Color::from_rgb8(186, 38, 62),
-        TokenClass::Punctuation | TokenClass::Whitespace => Color::from_rgb8(91, 101, 117),
+        TokenClass::Keyword => Color::from_rgb8(51, 23, 72),
+        TokenClass::Identifier => Color::from_rgb8(4, 39, 61),
+        TokenClass::String => Color::from_rgb8(4, 42, 27),
+        TokenClass::Number => Color::from_rgb8(63, 26, 6),
+        TokenClass::Comment => Color::from_rgb8(33, 37, 41),
+        TokenClass::Error => Color::from_rgb8(76, 9, 20),
+        TokenClass::Punctuation | TokenClass::Whitespace => Color::from_rgb8(32, 37, 44),
     };
     Format {
         color: Some(color),