Update a component in place

Added value: +{
+  "description": "Set by read_schlib only for an image whose compressed /Storage entry this server would not reproduce (another writer's zlib): the entry exactly as read, reused while it still holds image_data. Pass back unchanged; omit when authoring or replacing an image.",
+  "type": "string"
+}

Added value: +{
+  "description": "Set by read_schlib on a pin a script authored: the ANSI code page its name was widened through, so a rewrite stores the name as Altium did. Pass back unchanged; omit when authoring.",
+  "enum": [
+    874,
+    1250,
+    1251,
+    1252,
+    1253,
+    1254,
+    1255,
+    1256,
+    1257,
+    1258
+  ],
+  "maximum": 1258,
+  "minimum": 874,
+  "type": "integer"
+}

Previous value: -"The body's IDENTIFIER, a user-visible name (any Unicode; stored as code points on disk). Default: empty"New value: +"The body's IDENTIFIER, a user-visible name (any Unicode; stored as UTF-16 code units on disk). Default: empty"

Added value: +{
+  "description": "The pad's own polygon-connect style (Altium: Pad Stack > Thermal Relief), overriding the design rules for how a polygon pour joins the pad. Omit to follow the rules (the default); a key left out takes Altium's default.",
+  "properties": {
+    "air_gap": {
+      "description": "Gap between the pad and the pour in mm. Default: 0.254 (10 mil)",
+      "minimum": 0,
+      "type": "number"
+    },
+    "auto_conductors": {
+      "description": "Let Altium choose the conductor count. Default: false",
+      "type": "boolean"
+    },
+    "conductor_width": {
+      "description": "Width of each relief conductor in mm. Default: 0.254 (10 mil)",
+      "minimum": 0,
+      "type": "number"
+    },
+    "conductors": {
+      "description": "Number of relief conductors. Default: 4",
+      "enum": [
+        2,
+        4
+      ],
+      "maximum": 4,
+      "minimum": 2,
+      "type": "integer"
+    },
+    "min_distance": {
+      "description": "Minimum distance used with auto_conductors when min_distance_enabled is set, in mm. Default: 0.381 (15 mil)",
+      "minimum": 0,
+      "type": "number"
+    },
+    "min_distance_enabled": {
+      "description": "Apply min_distance (Altium's Min Distance checkbox). Default: false",
+      "type": "boolean"
+    },
+    "rotation": {
+      "description": "Conductor angle in degrees. Default: 90",
+      "enum": [
+        45,
+        90
+      ],
+      "maximum": 90,
+      "minimum": 45,
+      "type": "integer"
+    },
+    "style": {
+      "description": "How the pour joins the pad. Default: relief",
+      "enum": [
+        "relief",
+        "direct",
+        "no_connect"
+      ],
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

Added value: +{
+  "description": "Base64 of the region's contour bytes exactly as read_pcblib emitted them (outline and hole vertices). Altium stores a vertex as a double in internal units and a poured polygon's copper sits on fractional ones, so the bytes are replayed while they still describe the vertices above; an edited outline drops them. Pass back unchanged; omit when authoring.",
+  "type": "string"
+}

Added value: +{
+  "description": "The via's own polygon-connect style (Altium: Pad Stack > Thermal Relief), overriding the design rules for how a polygon pour joins the via. Omit to follow the rules (the default); a key left out takes Altium's default.",
+  "properties": {
+    "air_gap": {
+      "description": "Gap between the via and the pour in mm. Default: 0.254 (10 mil)",
+      "minimum": 0,
+      "type": "number"
+    },
+    "auto_conductors": {
+      "description": "Let Altium choose the conductor count. Default: false",
+      "type": "boolean"
+    },
+    "conductor_width": {
+      "description": "Width of each relief conductor in mm. Default: 0.254 (10 mil)",
+      "minimum": 0,
+      "type": "number"
+    },
+    "conductors": {
+      "description": "Number of relief conductors. Default: 4",
+      "enum": [
+        2,
+        4
+      ],
+      "maximum": 4,
+      "minimum": 2,
+      "type": "integer"
+    },
+    "min_distance": {
+      "description": "Minimum distance used with auto_conductors when min_distance_enabled is set, in mm. Default: 0.381 (15 mil)",
+      "minimum": 0,
+      "type": "number"
+    },
+    "min_distance_enabled": {
+      "description": "Apply min_distance (Altium's Min Distance checkbox). Default: false",
+      "type": "boolean"
+    },
+    "rotation": {
+      "description": "Conductor angle in degrees. Default: 90",
+      "enum": [
+        45,
+        90
+      ],
+      "maximum": 90,
+      "minimum": 45,
+      "type": "integer"
+    },
+    "style": {
+      "description": "How the pour joins the via. Default: relief",
+      "enum": [
+        "relief",
+        "direct",
+        "no_connect"
+      ],
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

Added value: +{
+  "description": "The footprint's Parameters keys other than HEIGHT, captured verbatim on read whenever the block is not the plain five-key block this tool writes from scratch: the PATTERN and DESCRIPTION bytes, the UNICODE twins that carry a name or description outside ASCII, the item and revision GUIDs of a managed footprint, a UI-authored AREA, and any key a newer Altium version writes. Each entry is a [key, value] string pair. Pass back unchanged on a read-modify-write so nothing is dropped (a PATTERN, DESCRIPTION or twin that no longer matches the name or description is rebuilt from it); omit when authoring, or to have the block rebuilt in Altium's current shape.",
+  "items": {
+    "items": {
+      "type": "string"
+    },
+    "maxItems": 2,
+    "minItems": 2,
+    "type": "array"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "Overall component height in mm — Altium's HEIGHT parameter, written as its mil string. Default: 0",
+  "minimum": 0,
+  "type": "number"
+}

Added value: +{
+  "description": "The footprint's Parameters keys in stored order, as read_pcblib emitted them; the writer replays this order so the block stays byte-faithful. Pass back unchanged; omit when authoring (canonical order).",
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "The CFB storage the component was read from, as read_pcblib/read_schlib emit it. Pass it back unchanged on a read-modify-write so the component stays where Altium looks for it (Altium re-derives a short name's storage and maps a long one through SectionKeys, so a moved storage is a component it cannot load); omit when authoring or renaming, and the storage name is derived as Altium would: / \\ : ! * become _, then a cut at 31 characters.",
+  "type": "string"
+}

Added value: +{
+  "description": "The CFB storage the component was read from, as read_pcblib/read_schlib emit it. Pass it back unchanged on a read-modify-write so the component stays where Altium looks for it (Altium re-derives a short name's storage and maps a long one through SectionKeys, so a moved storage is a component it cannot load); omit when authoring or renaming, and the storage name is derived as Altium would: / \\ : ! * become _, then a cut at 31 characters.",
+  "type": "string"
+}