diff --git a/wormhole-connect/src/components/DemoApp/index.tsx b/wormhole-connect/src/components/DemoApp/index.tsx
index 6b14bb48b..52085824a 100644
--- a/wormhole-connect/src/components/DemoApp/index.tsx
+++ b/wormhole-connect/src/components/DemoApp/index.tsx
@@ -177,7 +177,7 @@ function DemoApp() {
           <div id="custom-config">
             <textarea
               onChange={updateCustomConfig}
-              placeholder={'{\n  "env": "Mainnet"\n}'}
+              placeholder={'{\n  "network": "Mainnet"\n}'}
               onBlur={() => {
                 emitCustomConfig();
               }}
diff --git a/wormhole-connect/src/config/index.ts b/wormhole-connect/src/config/index.ts
index cb8e61e1f..29806be18 100644
--- a/wormhole-connect/src/config/index.ts
+++ b/wormhole-connect/src/config/index.ts
@@ -46,7 +46,6 @@ export function buildConfig(
 ): InternalConfig<Network> {
   const network = capitalize(
     customConfig?.network ||
-      customConfig?.env || // TODO remove; deprecated
       import.meta.env.REACT_APP_CONNECT_ENV?.toLowerCase() ||
       'Mainnet',
   ) as Network;
@@ -162,10 +161,6 @@ export function buildConfig(
     // UI details
     ui: createUiConfig({ ...customConfig?.ui }),
 
-    // Route options
-    ethBridgeMaxAmount: customConfig?.ethBridgeMaxAmount ?? 5,
-    wstETHBridgeMaxAmount: customConfig?.wstETHBridgeMaxAmount ?? 5,
-
     // Guardian Set
     guardianSet: networkData.guardianSet,
   };
diff --git a/wormhole-connect/src/config/types.ts b/wormhole-connect/src/config/types.ts
index 835e03638..3b458f0ce 100644
--- a/wormhole-connect/src/config/types.ts
+++ b/wormhole-connect/src/config/types.ts
@@ -15,7 +15,6 @@ import {
   TokenAddress as TokenAddressV2,
 } from '@wormhole-foundation/sdk';
 
-import { WormholeConnectPartialTheme } from 'theme';
 import { TransferDetails, WormholeConnectEventHandler } from 'telemetry/types';
 import { SDKConverter } from './converter';
 
@@ -83,7 +82,6 @@ export type IsRouteSupportedHandler = (
 
 // This is the integrator-provided config
 export interface WormholeConnectConfig {
-  env?: Network; // TODO REMOVE; DEPRECATED
   network?: Network; // New name for this, consistent with SDKv2
 
   // External resources
@@ -103,12 +101,6 @@ export interface WormholeConnectConfig {
   // Wormhole-wrapped token addresses
   wrappedTokens?: TokenAddressesByChain;
 
-  // Legacy support: allow theme to be in this config object
-  // This should be removed in a future version after people have switched
-  // to providing the theme as a separate prop
-  customTheme?: WormholeConnectPartialTheme;
-  mode?: 'dark' | 'light';
-
   // Callbacks
   eventHandler?: WormholeConnectEventHandler;
   validateTransferHandler?: ValidateTransferHandler;
@@ -116,10 +108,6 @@ export interface WormholeConnectConfig {
 
   // UI details
   ui?: UiConfig;
-
-  // Route settings
-  ethBridgeMaxAmount?: number;
-  wstETHBridgeMaxAmount?: number;
 }
 
 // This is the exported config value used throughout the code base
@@ -162,10 +150,6 @@ export interface InternalConfig<N extends Network> {
   // UI configuration
   ui: UiConfig;
 
-  // Route settings
-  ethBridgeMaxAmount: number;
-  wstETHBridgeMaxAmount: number;
-
   guardianSet: GuardianSetData;
 }
 
diff --git a/wormhole-connect/src/main.tsx b/wormhole-connect/src/main.tsx
index 3601ba0f4..e2e2df28f 100644
--- a/wormhole-connect/src/main.tsx
+++ b/wormhole-connect/src/main.tsx
@@ -55,19 +55,6 @@ try {
   if (configAttr) {
     const parsedConfig = JSON.parse(configAttr);
     config = { ...config, ...parsedConfig };
-
-    // Handle legacy method of including theme in config JSON
-    if (config?.customTheme) {
-      console.warn(
-        `Wormhole Connect: please provide your custom theme as a "data-theme" attribute. ` +
-          `Providing it in your "config" attribute won't be supported in future versions. ` +
-          `\n` +
-          `See the README for examples: ` +
-          `https://www.npmjs.com/package/@wormhole-foundation/wormhole-connect`,
-      );
-      theme = config.customTheme;
-      if (config?.mode) theme.mode = config.mode;
-    }
   }
 
   const themeAttr = container.getAttribute('data-theme');