SVGO config file

.svgo.yml

multipass: true

plugins:
  - addAttributesToSVGElement: false
  - addClassesToSVGElement: false
  - cleanupAttrs: true
  - cleanupEnableBackground: true
  - cleanupIDs: true
  - cleanupListOfValues: true
  - cleanupNumericValues:
      floatPrecision: 2
  - collapseGroups: true
  - convertColors: true
  - convertPathData: true
  - convertShapeToPath: true
  - convertStyleToAttrs: true
  - convertTransform: true
  - mergePaths: true
  - minifyStyles: true
  - moveElemsAttrsToGroup: true
  - moveGroupAttrsToElems: true
  - removeAttrs: true
  - removeComments: true
  - removeDesc: true
  - removeDimensions: true
  - removeDoctype: true
  - removeEditorsNSData: true
  - removeElementsByAttr: true
  - removeEmptyAttrs: true
  - removeEmptyContainers: true
  - removeEmptyText: true
  - removeHiddenElems: true
  - removeMetadata: true
  - removeNonInheritableGroupAttrs: true
  - removeRasterImages
  - removeStyleElement: true
  - removeTitle: true
  - removeUnknownsAndDefaults: true
  - removeUnusedNS: true
  - removeUselessDefs: true
  - removeUselessStrokeAndFill: true
  - removeViewBox: true
  - removeXMLNS: false
  - removeXMLProcInst: true
  - sortAttrs: true
  - transformsWithOnePath: true

js2svg:
  pretty: true
  indent: '  '

@VincentVToscano Have you tried placing a regular svgo.config.js file alongside your package.json? That has given me some good results in the past for other packages. It gets picked up by the svgo core library, regardless of any config flags. Not sure a yml file will work, so make sure its a plain JavaScript file. It should contain something like this, a list of plugins that you want to enable:

module.exports = {
    plugins: [
      'removeDoctype',
      'removeXMLProcInst',
      'removeComments',
      'removeMetadata',
      'removeEditorsNSData',
      'cleanupAttrs',
      'inlineStyles',
      'minifyStyles',
      // 'cleanupIDs',
      'removeUselessDefs',
      'cleanupNumericValues',
      'convertColors',
      'removeUnknownsAndDefaults',
      'removeNonInheritableGroupAttrs',
      'removeUselessStrokeAndFill',
      // 'removeViewBox',
      'cleanupEnableBackground',
      'removeHiddenElems',
      'removeEmptyText',
      'convertShapeToPath',
      'convertEllipseToCircle',
      'moveElemsAttrsToGroup',
      'moveGroupAttrsToElems',
      'collapseGroups',
      'convertPathData',
      'convertTransform',
      'removeEmptyAttrs',
      'removeEmptyContainers',
      'mergePaths',
      'removeUnusedNS',
      'sortDefsChildren',
      'removeTitle',
      'removeDesc'
    ]
}