Unable to change plotly background color in choropleth

Anvil Q&A
1

I have tried everything I could find in order to set the background of my choropleth map to transparent but I have been unable to do so.

What I’ve tried and what’s not working:

Code Sample:

def plot_1_show(self, **event_args):
    fig = go.Choropleth()
    self.plot_1.data = [fig]
    self.plot_1.layout = dict(
      title = None,
      geo_scope='usa',
      dragmode=False,
      geo_bgcolor='rgba(0, 0, 0, 0)',
      paper_bgcolor='rgba(0, 0, 0, 0)',
      plot_bgcolor='rgba(0, 0, 0, 0)',
      fillcolor='rgba(0, 0, 0, 0)',
      bgcolor='rgba(0, 0, 0, 0)',
      geo=dict(
        showframe=False,
        showcoastlines=False,
        projection_type='equirectangular',
        scope='usa',
        projection=go.layout.geo.Projection(type = 'albers usa'),
        geo_bgcolor='rgba(0,0,0,0)'
      )
    )

This is the image that is produced:

image
image1012×466 17.8 KB

2

Got it! I needed to specify the bgcolor property inside the dict for geo.

def plot_1_show(self, **event_args):
    fig = go.Choropleth()
    self.plot_1.data = [fig]
    self.plot_1.layout = dict(
      title = None,
      geo_scope='usa',
      dragmode=False,
      paper_bgcolor='rgba(0, 0, 0, 0)',
      plot_bgcolor='rgba(0, 0, 0, 0)',
      geo=dict(
        showframe=False,
        showcoastlines=False,
        projection_type='equirectangular',
        scope='usa',
        projection=go.layout.geo.Projection(type = 'albers usa'),
        bgcolor='rgba(0,0,0,0)'
      )
    )