fix in ANSI_COLOR_NAMES logic

Author: Carreau

prompt_toolkit/styles/from_dict.py

@@ -24,14 +24,14 @@ def _colorformat(text):
  Like in Pygments, but also support the ANSI color names.
  (These will map to the colors of the 16 color palette.)
  """
- if text[0:1] == '#':
+ if text == '' or text in ANSI_COLOR_NAMES:
+ return text
+ elif text[0:1] == '#':
  col = text[1:]
  if len(col) == 6:
  return col
  elif len(col) == 3:
  return col[0]*2 + col[1]*2 + col[2]*2
- elif text == '' or (text in ANSI_COLOR_NAMES):
- return text
 
  raise ValueError('Wrong color format %r' % text)