neovim: install catppuccin theme

neovim/.config/nvim/lua/theme.lua

@@ -0,0 +1,67 @@
+local M = {
+  name = "apple_system_colors_light",
+}
+
+M.palette = {
+  black = "#1a1a1a",
+  red_dark = "#cc372e",
+  green_dark = "#26a439",
+  yellow_dark = "#cdac08",
+  blue_dark = "#0869cb",
+  purple_dark = "#9647bf",
+  cyan_dark = "#479ec2",
+  gray_light = "#98989d",
+  gray_dark = "#464646",
+  red_light = "#ff453a",
+  green_light = "#32d74b",
+  yellow_light = "#e5bc00",
+  blue_light = "#0a84ff",
+  purple_light = "#bf5af2",
+  cyan_light = "#69c9f2",
+  white = "#ffffff",
+  background = "#feffff",
+  foreground = "#000000",
+  cursor_color = "#98989d",
+  cursor_text = "#ffffff",
+  selection_background = "#abd8ff",
+  selection_foreground = "#000000",
+}
+
+local function hl(group, opts)
+  vim.api.nvim_set_hl(0, group, opts)
+end
+
+function M.setup()
+  vim.g.colors_name = M.name
+
+  -- Basic UI groups
+  hl("Normal", { fg = M.palette.foreground, bg = M.palette.background })
+  hl("NormalNC", { fg = M.palette.foreground, bg = M.palette.background })
+  hl("CursorLine", { bg = M.palette.cursor_color, fg = M.palette.cursor_text })
+  hl("Visual", { bg = M.palette.selection_background })
+  hl("LineNr", { fg = M.palette.gray_light, bg = M.palette.background })
+  hl("CursorLineNr", { fg = M.palette.cyan_dark, bg = M.palette.background })
+
+  -- Syntax groups
+  hl("Comment", { fg = M.palette.gray_light, italic = true })
+  hl("Constant", { fg = M.palette.red_dark })
+  hl("String", { fg = M.palette.red_light })
+  hl("Identifier", { fg = M.palette.blue_dark })
+  hl("Statement", { fg = M.palette.green_dark })
+  hl("PreProc", { fg = M.palette.red_dark })
+  hl("Type", { fg = M.palette.purple_dark })
+  hl("Special", { fg = M.palette.gray_dark })
+  hl("Underlined", { underline = true })
+
+  -- Diagnostic groups
+  hl("DiagnosticError", { fg = M.palette.red_dark })
+  hl("DiagnosticWarn", { fg = M.palette.yellow_dark })
+  hl("DiagnosticInfo", { fg = M.palette.cyan_dark })
+  hl("DiagnosticHint", { fg = M.palette.blue_dark })
+  hl("DiagnosticUnderlineError", { sp = M.palette.red_dark, undercurl = true })
+  hl("DiagnosticUnderlineWarn", { sp = M.palette.yellow_dark, undercurl = true })
+  hl("DiagnosticUnderlineInfo", { sp = M.palette.cyan_dark, undercurl = true })
+  hl("DiagnosticUnderlineHint", { sp = M.palette.blue_dark, undercurl = true })
+end
+
+return M