API Reference > frontend-devTools > Tools > MapLayerTransparencyTool > run run Method This method runs the tool, setting the transparency of a map layer. run(layerIndex: number, transparency: number): boolean Parameter Type Description layerIndex number the index of the layer to change transparency number a numeric value in the range 0.0 (fully opaque) to 1.0 (fully transparent) Returns - boolean Defined in frontend-devtools/src/tools/MapLayerTool.ts Line 284 Last Updated: 12 June, 2024