how to show marker point in canvas map

[rboopathyAST]

I have following issues,

1. how to change the projection "mercator" into "conicEqualArea".
2. Marker point not display on canvas.

I have geoJSON with Marker point like,
{ "type": "Feature", "properties": {"marker-color": "#FFFF00","marker-size": "medium","marker-symbol": "star","attr_a":"Horse Location"}, "geometry": { "type": "Point", "coordinates":[12.697405815124512, 56.170918932710926]}}

Please find my attachment for full code
index.zip

My Expectation is:

My output:
The colors are good. but marker not draw and width is little height.