diff --git a/core/block.ts b/core/block.ts
index 7c7de425a..3e279f798 100644
--- a/core/block.ts
+++ b/core/block.ts
@@ -366,8 +366,8 @@ export class Block implements IASTNodeLocation, IDeletable {
    * change).
    */
   initModel() {
-    for (let i = 0, input; (input = this.inputList[i]); i++) {
-      for (let j = 0, field; (field = input.fieldRow[j]); j++) {
+    for (const input of this.inputList) {
+      for (const field of input.fieldRow) {
         if (field.initModel) {
           field.initModel();
         }
diff --git a/core/field.ts b/core/field.ts
index ba5478008..08aa28486 100644
--- a/core/field.ts
+++ b/core/field.ts
@@ -321,10 +321,8 @@ export abstract class Field<T = any>
 
   /**
    * Create the block UI for this field.
-   *
-   * @internal
    */
-  initView() {
+  protected initView() {
     this.createBorderRect_();
     this.createTextElement_();
   }
@@ -332,8 +330,6 @@ export abstract class Field<T = any>
   /**
    * Initializes the model of the field after it has been installed on a block.
    * No-op by default.
-   *
-   * @internal
    */
   initModel() {}
 
diff --git a/core/field_angle.ts b/core/field_angle.ts
index 918b885da..49eb03b98 100644
--- a/core/field_angle.ts
+++ b/core/field_angle.ts
@@ -165,8 +165,6 @@ export class FieldAngle extends FieldInput<number> {
 
   /**
    * Create the block UI for this field.
-   *
-   * @internal
    */
   override initView() {
     super.initView();
diff --git a/core/field_checkbox.ts b/core/field_checkbox.ts
index 44dea25fa..1b865feef 100644
--- a/core/field_checkbox.ts
+++ b/core/field_checkbox.ts
@@ -110,8 +110,6 @@ export class FieldCheckbox extends Field<CheckboxBool> {
 
   /**
    * Create the block UI for this checkbox.
-   *
-   * @internal
    */
   override initView() {
     super.initView();
diff --git a/core/field_colour.ts b/core/field_colour.ts
index d5ea7ee80..359c9d713 100644
--- a/core/field_colour.ts
+++ b/core/field_colour.ts
@@ -163,8 +163,6 @@ export class FieldColour extends Field<string> {
 
   /**
    * Create the block UI for this colour field.
-   *
-   * @internal
    */
   override initView() {
     this.size_ = new Size(
diff --git a/core/field_dropdown.ts b/core/field_dropdown.ts
index 3f9465762..0390a1031 100644
--- a/core/field_dropdown.ts
+++ b/core/field_dropdown.ts
@@ -185,8 +185,6 @@ export class FieldDropdown extends Field<string> {
 
   /**
    * Create the block UI for this dropdown.
-   *
-   * @internal
    */
   override initView() {
     if (this.shouldAddBorderRect_()) {
diff --git a/core/field_image.ts b/core/field_image.ts
index 752ef3e78..7476498c9 100644
--- a/core/field_image.ts
+++ b/core/field_image.ts
@@ -29,13 +29,13 @@ export class FieldImage extends Field<string> {
    */
   private static readonly Y_PADDING = 1;
   protected override size_: Size;
-  private readonly imageHeight: number;
+  protected readonly imageHeight: number;
 
   /** The function to be called when this field is clicked. */
   private clickHandler: ((p1: FieldImage) => void) | null = null;
 
   /** The rendered field's image element. */
-  private imageElement: SVGImageElement | null = null;
+  protected imageElement: SVGImageElement | null = null;
 
   /**
    * Editable fields usually show some sort of UI indicating they are
@@ -135,8 +135,6 @@ export class FieldImage extends Field<string> {
 
   /**
    * Create the block UI for this image.
-   *
-   * @internal
    */
   override initView() {
     this.imageElement = dom.createSvgElement(
diff --git a/core/field_input.ts b/core/field_input.ts
index ee6f66915..eb64d4493 100644
--- a/core/field_input.ts
+++ b/core/field_input.ts
@@ -141,7 +141,6 @@ export abstract class FieldInput<T extends InputTypes> extends Field<
     }
   }
 
-  /** @internal */
   override initView() {
     const block = this.getSourceBlock();
     if (!block) {
diff --git a/core/field_label.ts b/core/field_label.ts
index 9d3d98744..b67a10990 100644
--- a/core/field_label.ts
+++ b/core/field_label.ts
@@ -69,8 +69,6 @@ export class FieldLabel extends Field<string> {
 
   /**
    * Create block UI for this label.
-   *
-   * @internal
    */
   override initView() {
     this.createTextElement_();
diff --git a/core/field_multilineinput.ts b/core/field_multilineinput.ts
index cb812b428..df7d0f331 100644
--- a/core/field_multilineinput.ts
+++ b/core/field_multilineinput.ts
@@ -152,8 +152,6 @@ export class FieldMultilineInput extends FieldTextInput {
 
   /**
    * Create the block UI for this field.
-   *
-   * @internal
    */
   override initView() {
     this.createBorderRect_();
diff --git a/core/field_variable.ts b/core/field_variable.ts
index 8c1fa54b6..419881fa4 100644
--- a/core/field_variable.ts
+++ b/core/field_variable.ts
@@ -130,8 +130,6 @@ export class FieldVariable extends FieldDropdown {
    * Initialize the model for this field if it has not already been initialized.
    * If the value has not been set to a variable by the first render, we make up
    * a variable rather than let the value be invalid.
-   *
-   * @internal
    */
   override initModel() {
     const block = this.getSourceBlock();