ice40/.vscode/settings.json

{
    "verilog.linting.linter": "iverilog",
    "verilog.linting.iverilog.arguments": "-g2012 -Wall -Y .sv -i",
    "openInExternalApp.openMapper": [
        {
            "extensionName": "gtkw",
            "apps": [
                {
                    "title": "gtkwave",
                    "openCommand": "gtkwave"
                },
            ]
        },
        {
            "extensionName": "vcd",
            "apps": [
                {
                    "title": "gtkwave",
                    "openCommand": "gtkwave"
                },
            ]
        }
    ],
}