Incremental flag in config

I run backstop with something like that:

const backstop = require('backstopjs');

backstop('reference', {config:'custom/backstop/config.json'});

I don’t want to remove all reference images. There is a incremental param flag to do that backstop reference --i but I don’t know how to do this with config.json file. The param --filter is similar.

Thanks for your help

[garris]

Reference has been deprecated and is only supported as a utility function. It will clean the directory and start fresh.

The recommended flow is backstop test backstop approve Repeat.

[joyarzun]

@garris filter and incremental are part of config.args look here but the makeConfig.js only merge args from command params. So I’m pretty sure that there is no way to add config.args.[filter | incremental] in config file. It’s right? Is there any way to do it?