old_contents: from pygments.lexer import *
  from pygments.token import *
  
  class CustomLexer(RegexLexer):
      name = 'Balloon'
      aliases = ['balloon']
      filenames = '*.bl'
  
      tokens = {
          'root': [
  
              include('keywords'),
  
              (r'[]{}(),:;[]', Punctuation),
              (r'#.*?$', Comment),
  
              (r'[+-]?[0-9]+\.[0-9]+', Number.Float),
              (r'[+-]?[0-9]+', Number.Integer),
  
              (r'<=|>=|==|[+*<>=%\-\/]', Operator),
              (r'(and|or|not)\b', Operator.Word),
  
              (r'".*"', String),
  
              (r'(var|fn)\b', Keyword.Declaration),
  
              (r'[a-zA-Z_][a-zA-Z0-9_]*[!?]?', Name),
              (r'\s+', Text)
          ],
  
          'keywords': [
              (words((
                  'if', 'else', 'loop', 'break', 'continue', 'return',
                  'Number', 'Bool', 'String', 'Function', 'Tuple',
                  'any', 'void', 'true', 'false'), suffix=r'\b'),
              Keyword),
          ],
  
      }
  
new_contents: from pygments.lexer import *
  from pygments.token import *
  
  class CustomLexer(RegexLexer):
      name = 'Balloon'
      aliases = ['balloon', 'bl']
      filenames = '*.bl'
  
      tokens = {
          'root': [
  
              include('keywords'),
  
              (r'[]{}(),:;[]', Punctuation),
              (r'#.*?$', Comment),
  
              (r'[+-]?[0-9]+\.[0-9]+', Number.Float),
              (r'[+-]?[0-9]+', Number.Integer),
  
              (r'<=|>=|==|[+*<>=%\-\/]', Operator),
              (r'(and|or|not)\b', Operator.Word),
  
              (r'".*"', String),
  
              (r'(var|fn)\b', Keyword.Declaration),
  
              (r'[a-zA-Z_][a-zA-Z0-9_]*[!?]?', Name),
              (r'\s+', Text)
          ],
  
          'keywords': [
              (words((
                  'if', 'else', 'loop', 'break', 'continue', 'return',
                  'Number', 'Bool', 'String', 'Function', 'Tuple',
                  'any', 'void', 'true', 'false'), suffix=r'\b'),
              Keyword),
          ],
  
      }
  
subject: Add bl alias