diff --git a/packages/core/http/http-shared.ts b/packages/core/http/http-shared.ts
new file mode 100644
index 000000000..827ea86ea
--- /dev/null
+++ b/packages/core/http/http-shared.ts
@@ -0,0 +1,9 @@
+// Shared types and interfaces for http and image-source modules.
+// Only put platform-agnostic types/interfaces here.
+
+// Example: (add more as needed)
+// TODO: look at removing this after circulars are completely resolved.
+export interface ImageSourceLike {
+	toBase64String(format: string, quality?: number): string;
+	// ... add other shared methods/properties as needed
+}
diff --git a/packages/core/http/index.d.ts b/packages/core/http/index.d.ts
index 724f78ed9..b039c73c1 100644
--- a/packages/core/http/index.d.ts
+++ b/packages/core/http/index.d.ts
@@ -1,4 +1,5 @@
-import { ImageSource } from '../image-source';
+// import { ImageSource } from '../image-source';
+import type { ImageSourceLike } from './http-shared';
 import { File } from '../file-system';
 
 /**
@@ -29,13 +30,13 @@ export function getJSON<T>(options: HttpRequestOptions): Promise<T>;
  * Downloads the content from the specified URL and attempts to decode it as an image.
  * @param url The URL to request from.
  */
-export function getImage(url: string): Promise<ImageSource>;
+export function getImage(url: string): Promise<ImageSourceLike>;
 
 /**
  * Downloads the content from the specified URL and attempts to decode it as an image.
  * @param options An object that specifies various request options.
  */
-export function getImage(options: HttpRequestOptions): Promise<ImageSource>;
+export function getImage(options: HttpRequestOptions): Promise<ImageSourceLike>;
 
 /**
  * Downloads the content from the specified URL and attempts to save it as file.
@@ -157,7 +158,7 @@ export interface HttpContent {
 	/**
 	 * Gets the response body as ImageSource.
 	 */
-	toImage: () => Promise<ImageSource>;
+	toImage: () => Promise<ImageSourceLike>;
 
 	/**
 	 * Gets the response body as file.
diff --git a/packages/core/http/index.ts b/packages/core/http/index.ts
index 52e47f17c..6f8517513 100644
--- a/packages/core/http/index.ts
+++ b/packages/core/http/index.ts
@@ -1,4 +1,4 @@
-import { ImageSource } from '../image-source';
+import type { ImageSourceLike } from './http-shared';
 import { File } from '../file-system';
 import * as httpRequest from './http-request';
 export * from './http-request';
@@ -91,7 +91,7 @@ export interface HttpContent {
 	/**
 	 * Gets the response body as ImageSource.
 	 */
-	toImage: () => Promise<ImageSource>;
+	toImage: () => Promise<ImageSourceLike>;
 
 	/**
 	 * Gets the response body as file.
@@ -131,7 +131,7 @@ export function getJSON<T>(arg: any): Promise<T> {
 	});
 }
 
-export function getImage(arg: any): Promise<ImageSource> {
+export function getImage(arg: any): Promise<ImageSourceLike> {
 	return new Promise<any>((resolve, reject) => {
 		httpRequest.request(typeof arg === 'string' ? { url: arg, method: 'GET' } : arg).then(
 			(r) => {
diff --git a/packages/core/image-source/index.android.ts b/packages/core/image-source/index.android.ts
index b0c3f4ffd..f061bf38a 100644
--- a/packages/core/image-source/index.android.ts
+++ b/packages/core/image-source/index.android.ts
@@ -1,7 +1,7 @@
 // Definitions.
 import { ImageSource as ImageSourceDefinition, iosSymbolScaleType } from '.';
 import { ImageAsset } from '../image-asset';
-import * as httpModule from '../http';
+import * as http from '../http';
 
 // Types.
 import { path as fsPath, knownFolders } from '../file-system';
@@ -14,13 +14,6 @@ import { getScaledDimensions } from './image-source-common';
 
 export { isFileOrResourcePath };
 
-let http: typeof httpModule;
-function ensureHttp() {
-	if (!http) {
-		http = require('../http');
-	}
-}
-
 let application: android.app.Application;
 let resources: android.content.res.Resources;
 
@@ -87,10 +80,8 @@ export class ImageSource implements ImageSourceDefinition {
 		});
 	}
 
-	static fromUrl(url: string): Promise<ImageSourceDefinition> {
-		ensureHttp();
-
-		return http.getImage(url);
+	static fromUrl(url: string): Promise<ImageSource> {
+		return http.getImage(url) as Promise<ImageSource>;
 	}
 
 	static fromResourceSync(name: string): ImageSource {
diff --git a/packages/core/image-source/index.ios.ts b/packages/core/image-source/index.ios.ts
index e4ed7dbc8..aa555d427 100644
--- a/packages/core/image-source/index.ios.ts
+++ b/packages/core/image-source/index.ios.ts
@@ -2,7 +2,6 @@
 import { ImageSource as ImageSourceDefinition, iosSymbolScaleType } from '.';
 import { ImageAsset } from '../image-asset';
 import type { ImageBase } from '../ui/image/image-common';
-import * as httpModule from '../http';
 import { Font } from '../ui/styling/font';
 import { Color } from '../color';
 import { Trace } from '../trace';
@@ -12,16 +11,10 @@ import { path as fsPath, knownFolders } from '../file-system';
 import { isFileOrResourcePath, RESOURCE_PREFIX, layout, releaseNativeObject, SYSTEM_PREFIX } from '../utils';
 
 import { getScaledDimensions } from './image-source-common';
+import * as http from '../http';
 
 export { isFileOrResourcePath };
 
-let http: typeof httpModule;
-function ensureHttp() {
-	if (!http) {
-		http = require('../http');
-	}
-}
-
 export class ImageSource implements ImageSourceDefinition {
 	public android: android.graphics.Bitmap;
 	public ios: UIImage;
@@ -69,9 +62,7 @@ export class ImageSource implements ImageSourceDefinition {
 	}
 
 	static fromUrl(url: string): Promise<ImageSource> {
-		ensureHttp();
-
-		return http.getImage(url);
+		return http.getImage(url) as Promise<ImageSource>;
 	}
 
 	static iosSystemScaleFor(scale: iosSymbolScaleType) {
diff --git a/packages/core/ui/core/view-base/index.ts b/packages/core/ui/core/view-base/index.ts
index 9d5034b45..025a732b0 100644
--- a/packages/core/ui/core/view-base/index.ts
+++ b/packages/core/ui/core/view-base/index.ts
@@ -1,12 +1,11 @@
 import { AlignSelf, Flex, FlexFlow, FlexGrow, FlexShrink, FlexWrapBefore, Order } from '../../layouts/flexbox-layout';
 import { Page } from '../../page';
-import { CoreTypes } from '../../../core-types';
+import { CoreTypes, Trace } from '../../styling/styling-shared';
 import { Property, CssProperty, CssAnimationProperty, InheritedProperty, clearInheritedProperties, propagateInheritableProperties, propagateInheritableCssProperties, initNativeView } from '../properties';
 import { CSSUtils } from '../../../css/system-classes';
 import { Source } from '../../../utils/debug-source';
 import { Binding } from '../bindable';
 import { BindingOptions } from '../bindable/bindable-types';
-import { Trace } from '../../../trace';
 import { Observable, PropertyChangeData, WrappedValue } from '../../../data/observable';
 import { Style } from '../../styling/style';
 import { paddingTopProperty, paddingRightProperty, paddingBottomProperty, paddingLeftProperty } from '../../styling/style-properties';
diff --git a/packages/core/ui/core/view/view-common.ts b/packages/core/ui/core/view/view-common.ts
index a9c49a5b9..dfa7f3850 100644
--- a/packages/core/ui/core/view/view-common.ts
+++ b/packages/core/ui/core/view/view-common.ts
@@ -8,8 +8,6 @@ import { sanitizeModuleName } from '../../../utils/common';
 import { Color } from '../../../color';
 import { Property, InheritedProperty } from '../properties';
 import { EventData } from '../../../data/observable';
-import { Trace } from '../../../trace';
-import { CoreTypes } from '../../../core-types';
 import { ViewHelper } from './view-helper';
 import { setupAccessibleView } from '../../../application';
 
@@ -31,6 +29,7 @@ import { accessibilityBlurEvent, accessibilityFocusChangedEvent, accessibilityFo
 import { ShadowCSSValues } from '../../styling/css-shadow';
 import { SharedTransition, SharedTransitionInteractiveOptions } from '../../transition/shared-transition';
 import { Flex, FlexFlow } from '../../layouts/flexbox-layout';
+import { CoreTypes, Trace } from '../../styling/styling-shared';
 
 // helpers (these are okay re-exported here)
 export * from './view-helper';
diff --git a/packages/core/ui/core/view/view-helper/index.ios.ts b/packages/core/ui/core/view/view-helper/index.ios.ts
index cf9898b7d..ffb5edb5e 100644
--- a/packages/core/ui/core/view/view-helper/index.ios.ts
+++ b/packages/core/ui/core/view/view-helper/index.ios.ts
@@ -5,8 +5,8 @@ import type { View } from '..';
 // Requires
 import { ViewHelper } from './view-helper-common';
 import { SDK_VERSION } from '../../../../utils/constants';
-import { ios as iOSUtils, layout } from '../../../../utils';
-import { Trace } from '../../../../trace';
+import { layout, Trace } from './view-helper-shared';
+import { ios as iOSUtils } from '../../../../utils';
 
 export * from './view-helper-common';
 export const AndroidHelper = 0;
diff --git a/packages/core/ui/core/view/view-helper/view-helper-common.ts b/packages/core/ui/core/view/view-helper/view-helper-common.ts
index 14b638f7d..54a01e4f1 100644
--- a/packages/core/ui/core/view/view-helper/view-helper-common.ts
+++ b/packages/core/ui/core/view/view-helper/view-helper-common.ts
@@ -1,10 +1,6 @@
 // Types
 import { View as ViewDefinition } from '..';
-import { CoreTypes } from '../../../../core-types';
-
-// Requires
-import { layout } from '../../../../utils';
-import { Trace } from '../../../../trace';
+import { CoreTypes, layout, Trace } from './view-helper-shared';
 
 export class ViewHelper {
 	public static measureChild(parent: ViewDefinition, child: ViewDefinition, widthMeasureSpec: number, heightMeasureSpec: number): { measuredWidth: number; measuredHeight: number } {
diff --git a/packages/core/ui/core/view/view-helper/view-helper-shared.ts b/packages/core/ui/core/view/view-helper/view-helper-shared.ts
new file mode 100644
index 000000000..1bcb1031c
--- /dev/null
+++ b/packages/core/ui/core/view/view-helper/view-helper-shared.ts
@@ -0,0 +1,9 @@
+// Shared helpers and types for view-helper, used by both common and platform-specific files.
+// Only put platform-agnostic logic here.
+
+import { CoreTypes } from '../../../../core-types';
+import { layout } from '../../../../utils';
+import { Trace } from '../../../../trace';
+
+export type { CoreTypes };
+export { layout, Trace };
diff --git a/packages/core/ui/styling/css-selector.ts b/packages/core/ui/styling/css-selector.ts
index 40c4d5ffb..3cc4bf640 100644
--- a/packages/core/ui/styling/css-selector.ts
+++ b/packages/core/ui/styling/css-selector.ts
@@ -1,7 +1,7 @@
 import { parse as convertToCSSWhatSelector, Selector as CSSWhatSelector, DataType as CSSWhatDataType } from 'css-what';
 import '../../globals';
 import { isCssVariable } from '../core/properties';
-import { Trace } from '../../trace';
+import { Trace, CoreTypes } from './styling-shared';
 import { isNullOrUndefined } from '../../utils/types';
 
 import * as ReworkCSS from '../../css';
diff --git a/packages/core/ui/styling/style-scope.ts b/packages/core/ui/styling/style-scope.ts
index 08eaecd39..37ed20c2a 100644
--- a/packages/core/ui/styling/style-scope.ts
+++ b/packages/core/ui/styling/style-scope.ts
@@ -4,10 +4,10 @@ import { unsetValue, _evaluateCssVariableExpression, _evaluateCssCalcExpression,
 import * as ReworkCSS from '../../css';
 
 import { RuleSet, StyleSheetSelectorScope, SelectorCore, SelectorsMatch, ChangeMap, fromAstNode, Node, MEDIA_QUERY_SEPARATOR, matchMediaQueryString } from './css-selector';
-import { Trace } from '../../trace';
+import { Trace, CoreTypes } from './styling-shared';
 import { File, knownFolders, path } from '../../file-system';
 import { Application, CssChangedEventData, LoadAppCSSEventData } from '../../application';
-import { profile } from '../../profiling';
+import { profile } from './styling-profile';
 
 import * as kam from '../animation/keyframe-animation';
 let keyframeAnimationModule: typeof kam;
diff --git a/packages/core/ui/styling/styling-profile.ts b/packages/core/ui/styling/styling-profile.ts
new file mode 100644
index 000000000..9541ec9cf
--- /dev/null
+++ b/packages/core/ui/styling/styling-profile.ts
@@ -0,0 +1,4 @@
+// This file exists to break cycles caused by importing profiling into style-scope.ts.
+// Only put the @profile decorator and related logic here.
+
+export { profile } from '../../profiling';
diff --git a/packages/core/ui/styling/styling-shared.ts b/packages/core/ui/styling/styling-shared.ts
new file mode 100644
index 000000000..2c83f3309
--- /dev/null
+++ b/packages/core/ui/styling/styling-shared.ts
@@ -0,0 +1,7 @@
+// Shared helpers and types for styling, used by both styling and view/dialogs/frame modules.
+// Only put platform-agnostic logic here.
+
+import { Trace } from '../../trace';
+import { CoreTypes } from '../../core-types';
+
+export { Trace, CoreTypes };
diff --git a/packages/core/utils/common.ts b/packages/core/utils/common.ts
index 2f8f46379..2b1102633 100644
--- a/packages/core/utils/common.ts
+++ b/packages/core/utils/common.ts
@@ -101,20 +101,6 @@ export function isDataURI(uri: string): boolean {
 	return firstSegment && firstSegment.indexOf('data:') === 0 && firstSegment.indexOf('base64') >= 0;
 }
 
-/**
- * Get file extension from file path
- * @param path file path
- * @returns file extension
- */
-export function getFileExtension(path: string): string {
-	const dotIndex = path.lastIndexOf('.');
-	if (dotIndex && dotIndex >= 0 && dotIndex < path.length) {
-		return path.substring(dotIndex);
-	}
-
-	return '';
-}
-
 export function mergeSort(arr, compareFunc) {
 	if (arr.length < 2) {
 		return arr;
@@ -292,3 +278,5 @@ export function getDurationWithDampingFromSpring(springSettings?: { tension?: nu
 		damping,
 	};
 }
+
+export { getFileExtension } from './utils-shared';
diff --git a/packages/core/utils/native-helper.ios.ts b/packages/core/utils/native-helper.ios.ts
index ee396a4cd..1c50b8ed2 100644
--- a/packages/core/utils/native-helper.ios.ts
+++ b/packages/core/utils/native-helper.ios.ts
@@ -4,6 +4,7 @@ import { Color } from '../color';
 import { Trace } from '../trace';
 import { CORE_ANIMATION_DEFAULTS, getDurationWithDampingFromSpring } from './common';
 import { SDK_VERSION } from './constants';
+import { getFileExtension } from './utils-shared';
 
 export function dataDeserialize(nativeData?: any) {
 	if (isNullOrUndefined(nativeData)) {
diff --git a/packages/core/utils/utils-shared.ts b/packages/core/utils/utils-shared.ts
new file mode 100644
index 000000000..35bec0906
--- /dev/null
+++ b/packages/core/utils/utils-shared.ts
@@ -0,0 +1,12 @@
+// Shared helpers and types for utils, used by both native-helper and common.
+// Only put platform-agnostic logic here.
+
+export function getFileExtension(path: string): string {
+	if (!path) {
+		return '';
+	}
+	const index = path.lastIndexOf('.');
+	return index !== -1 ? path.substring(index + 1) : '';
+}
+
+// Add more shared helpers/types/constants as needed.