diff --git a/package.json b/package.json
index 0882391c663..dc924a799fe 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "test": "echo \"Error: no test specified\" && exit 1",
     "jsonlint": "yarn --silent jsonlint:files | xargs -n1 jsonlint -q -c && echo \"jsonlint: no lint errors\"",
     "jsonlint:files": "find . -name \"*.json\" | grep -v -f .eslintignore",
-    "prettier": "npx prettier --write 'packages/**/src/*.js'",
+    "prettier": "npx prettier --write 'packages/**/src/*.js' 'packages/**/config/*.js' 'packages/**/example/src/*'",
     "reconfigure": "npx babel-node scripts/reconfigure.js",
     "dxf": "npx babel-node scripts/export-dxf.js",
     "prerelease": "lerna version --no-git-tag-version --no-push && yarn reconfigure && lerna run build",
diff --git a/packages/bella/config/index.js b/packages/bella/config/index.js
index 441fae90bdd..3f7d20c5aa5 100644
--- a/packages/bella/config/index.js
+++ b/packages/bella/config/index.js
@@ -10,30 +10,16 @@ export default {
   difficulty: 3,
   tags: ['block', 'top', 'basics'],
   optionGroups: {
-    fit: [
-      'chestEase',
-      'waistEase',
-      'bustSpanEase'
-    ],
-    darts: [
-      'backDartHeight',
-      'bustDartLength',
-      'waistDartLength',
-      'bustDartCurve'
-    ],
+    fit: ['chestEase', 'waistEase', 'bustSpanEase'],
+    darts: ['backDartHeight', 'bustDartLength', 'waistDartLength', 'bustDartCurve'],
     armhole: [
       'armholeDepth',
       'backArmholeSlant',
       'backArmholeCurvature',
       'frontArmholePitchDepth',
-      'backArmholePitchDepth',
+      'backArmholePitchDepth'
     ],
-    advanced: [
-      'backNeckCutout',
-      'backHemSlope',
-      'frontShoulderWidth',
-      'highBustWidth',
-    ]
+    advanced: ['backNeckCutout', 'backHemSlope', 'frontShoulderWidth', 'highBustWidth']
   },
   measurements: [
     'highBust',
@@ -89,6 +75,6 @@ export default {
     highBustWidth: { pct: 86, max: 92, min: 80 },
     bustDartLength: { pct: 90, min: 75, max: 100 },
     waistDartLength: { pct: 90, min: 75, max: 95 },
-    bustDartCurve: { pct: 100, min: 0, max: 100 },
+    bustDartCurve: { pct: 100, min: 0, max: 100 }
   }
 }
diff --git a/packages/create-freesewing-pattern/template/default/config/index.js b/packages/create-freesewing-pattern/template/default/config/index.js
index cbab3a9b8b7..644dc51cbbb 100644
--- a/packages/create-freesewing-pattern/template/default/config/index.js
+++ b/packages/create-freesewing-pattern/template/default/config/index.js
@@ -1,35 +1,35 @@
-import { version } from "../package.json";
+import { version } from '../package.json'
 
 // ?? 🤔 ?? --> https://{{language}}.freesewing.dev/packages/core/config
 
 export default {
-  name: "{{name}}",
+  name: '{{name}}',
   version,
-  design: "{{author}}",
-  code: "{{author}}",
-  department: "{{department}}",
-  type: "{{type}}",
+  design: '{{author}}',
+  code: '{{author}}',
+  department: '{{department}}',
+  type: '{{type}}',
   difficulty: 3,
   tags: [
-    "freesewing",
-    "design",
-    "diy",
-    "fashion",
-    "made to measure",
-    "parametric design",
-    "{{type}}",
-    "sewing",
-    "sewing pattern"
+    'freesewing',
+    'design',
+    'diy',
+    'fashion',
+    'made to measure',
+    'parametric design',
+    '{{type}}',
+    'sewing',
+    'sewing pattern'
   ],
   optionGroups: {
-    fit: ["size"]
+    fit: ['size']
   },
   measurements: [],
   dependencies: {},
   inject: {},
   hide: [],
-  parts: ["box"],
+  parts: ['box'],
   options: {
     size: { pct: 50, min: 10, max: 100 }
   }
-};
+}
diff --git a/packages/create-freesewing-pattern/template/default/example/src/layout.scss b/packages/create-freesewing-pattern/template/default/example/src/layout.scss
index 9ad0ca27688..d249e272a37 100644
--- a/packages/create-freesewing-pattern/template/default/example/src/layout.scss
+++ b/packages/create-freesewing-pattern/template/default/example/src/layout.scss
@@ -225,7 +225,6 @@ li.action span.MuiSwitch-root {
   }
 }
 
-
 footer {
   background-color: #1a1d21;
   color: #adb5bd;
diff --git a/packages/hortensia/config/index.js b/packages/hortensia/config/index.js
index 535462931be..16386cd83c6 100644
--- a/packages/hortensia/config/index.js
+++ b/packages/hortensia/config/index.js
@@ -1,21 +1,18 @@
-import { version } from "../package.json";
+import { version } from '../package.json'
 
-// ?? 🤔 ?? --> https://en.freesewing.dev/packages/core/config
+// 🤔 --> https://freesewing.dev/reference/config/
 
 export default {
-  name: "hortensia",
+  name: 'hortensia',
   version,
   design: ['Stoffsuchti', 'Wouter Van Wageningen'],
   code: 'Wouter Van Wageningen',
-  department: "accessories",
-  type: "pattern",
+  department: 'accessories',
+  type: 'pattern',
   difficulty: 3,
-  tags: [
-    "handbag",
-    "accessories",
-  ],
+  tags: ['handbag', 'accessories'],
   optionGroups: {
-    options: ["size", "zipperSize","strapLength","handleWidth"]
+    options: ['size', 'zipperSize', 'strapLength', 'handleWidth']
   },
   measurements: [],
   dependencies: {
@@ -23,7 +20,7 @@ export default {
     bottompanel: 'sidepanel',
     frontpanel: 'sidepanel',
     sidepanelreinforcement: 'sidepanel',
-    zipperpanel: 'sidepanel',
+    zipperpanel: 'sidepanel'
   },
   options: {
     width: 230,
@@ -35,6 +32,6 @@ export default {
     strapLength: { pct: 160, min: 75, max: 250 },
     handleWidth: { mm: 20, min: 7, max: 30 },
     size: { pct: 50, min: 20, max: 200 },
-    zipperSize: { dflt: '#5', list: ['#3','#4','#4.5','#5','#6','#8','#10','Invisible']}
+    zipperSize: { dflt: '#5', list: ['#3', '#4', '#4.5', '#5', '#6', '#8', '#10', 'Invisible'] }
   }
-};
+}
diff --git a/packages/rendertest/config/index.js b/packages/rendertest/config/index.js
index 44851398d0b..03bbee0b2f0 100644
--- a/packages/rendertest/config/index.js
+++ b/packages/rendertest/config/index.js
@@ -1,20 +1,20 @@
-import { version } from "../package.json";
+import { version } from '../package.json'
 
 export default {
-  name: "rendertest",
+  name: 'rendertest',
   version,
-  design: "Joost De Cock",
-  code: "Joost De Cock",
-  department: "womenswear",
-  type: "pattern",
+  design: 'Joost De Cock',
+  code: 'Joost De Cock',
+  department: 'womenswear',
+  type: 'pattern',
   difficulty: 1,
-  tags: ["example"],
+  tags: ['example'],
   optionGroups: {
-    size: ["width"],
-    content: ["colors", "circles", "text", "snippets", "macros"]
+    size: ['width'],
+    content: ['colors', 'circles', 'text', 'snippets', 'macros']
   },
   measurements: [],
-  parts: ["test"],
+  parts: ['test'],
   options: {
     width: { mm: 200, min: 50, max: 500 },
     colors: { bool: true },
@@ -24,4 +24,4 @@ export default {
     macros: { bool: true },
     widthHd: { bool: true }
   }
-};
+}