fix #35: highlight treesitter operators

lua/catppuccino/core/integrations/treesitter.lua

@@ -38,7 +38,7 @@ function M.get(cpt)
 		TSNamespace = { fg = cpt.cyan }, -- For identifiers referring to modules and namespaces.
 		-- TSNone              = { };    -- TODO: docs
 		-- TSNumber            = { };    -- For all numbers
-		TSOperator = { fg = cpt.fg }, -- For any operator: `+`, but also `->` and `*` in cpt.
+		TSOperator = { fg = cpt.cyan }, -- For any operator: `+`, but also `->` and `*` in cpt.
 		TSParameter = { fg = cpt.orange_br }, -- For parameters of a function.
 		-- TSParameterReference= { };    -- For references to parameters of a function.
 		TSProperty = { fg = cpt.red_br }, -- Same as `TSField`.