bump version; fix styles per volume edge color implementation

Author: DanielGoldfarb

.github/workflows/mplfinance_checks.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.8, 3.9, 3.10]
     steps:
       - name: Preliminary Information
         run: |

src/mplfinance/_styledata/brasil.py

@@ -4,7 +4,6 @@
                           'wick'  : {'up': '#fedf00', 'down': '#002776'},
                           'ohlc'  : {'up': '#fedf00', 'down': '#002776'},
                           'volume': {'up': '#fedf00', 'down': '#002776'},
-                          'vcedge': {'up': '#1f77b4', 'down': '#1f77b4'},
                           'vcdopcod': False,
                           'alpha': 0.9},
          'mavcolors' : None,

src/mplfinance/_styledata/checkers.py

@@ -4,7 +4,6 @@
                             'wick'  : {'up': '#606060', 'down': '#606060'},
                             'ohlc'  : {'up': '#000000', 'down': '#ff0000'},
                             'volume': {'up': '#6f6f6f', 'down': '#ff4040'},
-                            'vcedge': {'up': '#1f77b4', 'down': '#1f77b4'},
          'vcdopcod'      : False,
          'alpha'         : 0.9},
          'mavcolors'     : None,

src/mplfinance/_styledata/starsandstripes.py

@@ -4,7 +4,6 @@
                           'wick'  : {'up': '#082865', 'down': '#ae0019'},
                           'ohlc'  : {'up': '#082865', 'down': '#ae0019'},
                           'volume': {'up': '#082865', 'down': '#ae0019'},
-                          'vcedge': {'up': '#1f77b4', 'down': '#1f77b4'},
                           'vcdopcod': False,
                           'alpha': 0.9},
          'mavcolors': None,

src/mplfinance/_styledata/yahoo.py

@@ -4,7 +4,6 @@
                             'wick'  : {'up': '#606060', 'down': '#606060'},
                             'ohlc'  : {'up': '#00b060', 'down': '#fe3032'},
                             'volume': {'up': '#4dc790', 'down': '#fd6b6c'},
-                            'vcedge': {'up': '#1f77b4', 'down': '#1f77b4'},
          'vcdopcod'      : True,
          'alpha'         : 0.9},
          'mavcolors'     : None,

src/mplfinance/_version.py

@@ -1,4 +1,4 @@
-version_info = (0, 12, 9, 'beta', 8)
+version_info = (0, 12, 9, 'beta', 9)
 
 _specifier_ = {'alpha': 'a','beta': 'b','candidate': 'rc','final': ''}