doc

docs/reference.md

@@ -301,7 +301,7 @@ The kernel smoothing computation relies on the [fast-kde](https://www.npmjs.com/
 
 ## Custom styles
 
-The style can be freely defined through the **drawFun**, which specifies how to draw the list of cells within the view on the map canvas. See [this example](https://eurostat.github.io/gridviz/examples/basics/custom_style.html) ([code](https://github.com/eurostat/gridviz/blob/master/examples/basics/custom_style.html)) to define a simple custom style.
+The style can be freely defined through the **drawFun**, which specifies how to draw the list of cells within the view on the map canvas. See [this example](https://eurostat.github.io/gridviz/examples/basics/custom_style.html) ([code](https://github.com/eurostat/gridviz/blob/master/examples/basics/custom_style.html)) to define a simple style to draw each cell as an arrow symbol.
 
 ## Background layer
 

examples/basics/blending_alpha.html

@@ -5,10 +5,10 @@
 
     //define map with initial view
     const map = new gridviz.Map(document.getElementById('map'), { x: 4300000, y: 2900000, z: 300 })
+        .addZoomButtons()
 
     //define dataset
     const dataset = new gridviz.CSVGrid(map, "https://raw.githubusercontent.com/eurostat/gridviz/master/assets/csv/Europe/pop_2018_10km.csv", 10000)
-        .addZoomButtons()
 
     //define color for each cell c
     const colorFunction = (cell) => {