Helper methods - Basic color/size (default symbology and basemap)

[makella]

• default Basemap

default size/widths for

• points
• lines
• polygons

default colors (see note below)

• points
• lines
• polygons

[makella]

Default basemap:

• dark matter

Default colors:

• currently, VL uses the same default colors for points, lines, and polygons that Builder does. For right now, we can keep those. I would like to spend some time testing those defaults with the proposed default sizes and also inside of the notebook (aesthetically) and also with legends.

Default (stroke)widths and strokecolors:

I've tried to test these defaults over a variety of datasets... not sure if they are the final, final, but will be good to see them throughout the workflows to get a better sense!

points:

'width': 'ramp(linear(zoom(),0,18),[2,10])',
'strokeWidth': 'ramp(linear(zoom(),0,18),[0,1])',
'strokeColor' : 'opacity(#222,ramp(linear(zoom(),0,18),[0,1]))'

lines:

'width': 'ramp(linear(zoom(),0,18),[0.5,4])'

polygons:

'strokeWidth': 'ramp(linear(zoom(),2,18),[0.5,1])',
'strokeColor' : 'opacity(#2c2c2c,ramp(linear(zoom(),2,18),[0.2,0.6]))'

cc @Jesus89 @VictorVelarde @rjimenezda

[makella]

ok, first set of defaults for points, lines, polys above.

[Jesus89]

Implemented in #675