Migration: Move properties.style → style: { .element }

Context

In the old system, inline styles on a block's root element lived under properties.style. In Lowdefy v4.8, all styling moves to a top-level style: block with .-prefixed slot keys. The root element slot is .element.

The build auto-normalizes properties.style with a deprecation warning, but migrating now produces cleaner configs.

What to Do

For each block that has a style: key under properties::

1. Remove the style: entry from properties:
2. Add a sibling style: block (at the same level as properties:) with the content nested under .element:

If the block already has a top-level style: block, merge the .element entry into it.

Files to Check

Glob: **/*.{yaml,yml} Grep: properties: then check for style: child

Examples

Before — single-line style

- id: header
  type: Box
  properties:
    style:
      backgroundColor: '#f0f0f0'
      padding: 16

After

- id: header
  type: Box
  style:
    .element:
      backgroundColor: '#f0f0f0'
      padding: 16

Before — inline object style

- id: divider
  type: Divider
  properties:
    style: { marginTop: 24, marginBottom: 24 }

After

- id: divider
  type: Divider
  style:
    .element: { marginTop: 24, marginBottom: 24 }

Before — block with other properties

- id: card
  type: Card
  properties:
    title: My Card
    style:
      borderRadius: 8
    bordered: true

After

- id: card
  type: Card
  properties:
    title: My Card
    bordered: true
  style:
    .element:
      borderRadius: 8

Edge Cases

• Do not move style: keys that are already at the block top level (not under properties:)
• If a block already has a top-level style: with other . slots, add .element to it rather than creating a duplicate style: block
• Do not touch style: inside markdown code blocks, string values, or _ref content
• Operator expressions inside style: (like _if, _state) should be moved as-is

Verification

grep -rn 'properties:' --include='*.yaml' --include='*.yml' . -A 5 | grep 'style:'

No style: should appear as a child of properties: after migration.