🎨 Refine syntax highlighting colors and styling

Update semantic color mappings and TreeSitter highlighting styles

- Change variable color from pink to fg for better readability
- Update number and constant colors to coral for consistency
- Set function colors to cyan with bold styling
- Change operator color to fg_dark for subtle appearance
- Update bracket color to fg instead of purple
- Add coral color with italics for builtin variables
- Remove italic styling from Function highlight group
- Add bold styling to keywords, functions, and methods in TreeSitter
- Add Python-specific highlighting for builtin parameters and variables

Author: hyperb1iss

lua/silkcircuit/integrations/treesitter.lua

@@ -19,7 +19,7 @@ function M.get(colors, opts)
 
   -- Identifiers
   highlights["@variable"] = { fg = sem.variable }
-  highlights["@variable.builtin"] = { fg = colors.cyan }
+  highlights["@variable.builtin"] = { fg = colors.coral, italic = true }
   highlights["@variable.parameter"] = { fg = sem.parameter }
   highlights["@variable.member"] = { fg = sem.property }
 
@@ -58,18 +58,18 @@ function M.get(colors, opts)
   highlights["@property"] = { fg = sem.property }
 
   -- Functions
-  highlights["@function"] = apply_style({ fg = sem.func }, "functions")
-  highlights["@function.builtin"] = { fg = sem.func_call }
+  highlights["@function"] = apply_style({ fg = sem.func, bold = true }, "functions")
+  highlights["@function.builtin"] = { fg = sem.function_builtin }
   highlights["@function.call"] = { fg = sem.func_call }
   highlights["@function.macro"] = { fg = colors.purple }
-  highlights["@function.method"] = apply_style({ fg = sem.method }, "functions")
+  highlights["@function.method"] = apply_style({ fg = sem.method, bold = true }, "functions")
   highlights["@function.method.call"] = { fg = sem.func_call }
 
   highlights["@constructor"] = { fg = sem.type }
   highlights["@operator"] = apply_style({ fg = sem.operator }, "operators")
 
   -- Keywords
-  highlights["@keyword"] = apply_style({ fg = sem.keyword }, "keywords")
+  highlights["@keyword"] = apply_style({ fg = sem.keyword, bold = true }, "keywords")
   highlights["@keyword.coroutine"] = { fg = colors.keyword }
   highlights["@keyword.function"] = { fg = colors.purple }
   highlights["@keyword.operator"] = { fg = colors.operator }
@@ -137,6 +137,10 @@ function M.get(colors, opts)
   highlights["@diff.delta"] = { fg = colors.git_change }
 
   -- Language specific highlights
+
+  -- Python
+  highlights["@variable.parameter.builtin.python"] = { fg = colors.coral, italic = true } -- self, cls
+  highlights["@variable.builtin.python"] = { fg = colors.coral } -- __name__, __file__, etc
   -- Bash
   highlights["@function.builtin.bash"] = { fg = colors.red, italic = true }
 

lua/silkcircuit/palette.lua

@@ -119,27 +119,27 @@ function M.update_semantic(colors)
   M.semantic = {
     -- Syntax (consistent across all languages)
     keyword = colors.purple,
-    variable = colors.pink,
+    variable = colors.fg,
     string = colors.pink_bright,
-    number = colors.purple_dark,
+    number = colors.coral,
     boolean = colors.pink,
-    constant = colors.purple_dark,
-    func = colors.glow_purple,
-    ["function"] = colors.glow_purple,
-    function_builtin = colors.purple_bright,
+    constant = colors.coral,
+    func = colors.cyan,
+    ["function"] = colors.cyan,
+    function_builtin = colors.cyan_bright,
     func_call = colors.cyan,
-    method = colors.glow_purple,
+    method = colors.cyan,
     class = colors.yellow,
     type = colors.yellow,
     type_builtin = colors.yellow_bright,
-    operator = colors.cyan,
+    operator = colors.fg_dark,
     comment = colors.purple_muted,
     punctuation = colors.fg_dark,
-    bracket = colors.purple,
+    bracket = colors.fg,
     tag = colors.pink,
     attribute = colors.purple,
     property = colors.cyan_bright,
-    parameter = colors.pink,
+    parameter = colors.fg,
 
     -- Special syntax elements
     namespace = colors.purple,

lua/silkcircuit/theme.lua

@@ -108,7 +108,7 @@ function M.get_highlights(colors, opts)
   highlights.Float = { fg = sem.number }
 
   highlights.Identifier = { fg = sem.variable }
-  highlights.Function = apply_style({ fg = sem.func, bold = true, italic = true }, "functions")
+  highlights.Function = apply_style({ fg = sem.func, bold = true }, "functions")
 
   highlights.Statement = { fg = sem.keyword }
   highlights.Conditional = apply_style({ fg = sem.keyword }, "conditionals")