diff --git a/src/assets/localization/fallback.strings b/src/assets/localization/fallback.strings
index 95e260671..cf78b4034 100644
--- a/src/assets/localization/fallback.strings
+++ b/src/assets/localization/fallback.strings
@@ -2885,6 +2885,5 @@
 "TextShowLess" = "less";
 "AiMessageEditorFrom" = "From";
 "AiMessageEditorTo" = "To";
-"TranslationToneNeutral" = "Neutral";
 "ButtonHelp" = "Help";
 "UnofficialSecurityRisk" = "{peer} uses an unofficial Telegram client — messages to this user may be less secure.";
diff --git a/src/components/modals/webApp/WebAppModalTabContent.tsx b/src/components/modals/webApp/WebAppModalTabContent.tsx
index 86814aa8b..d6de1983b 100644
--- a/src/components/modals/webApp/WebAppModalTabContent.tsx
+++ b/src/components/modals/webApp/WebAppModalTabContent.tsx
@@ -275,6 +275,10 @@ const WebAppModalTabContent: FC<OwnProps & StateProps> = ({
     return Boolean(text?.trim().length || iconCustomEmojiId);
   }
 
+  function getValidHexColor(color: string | undefined) {
+    return color && validateHexColor(color) ? color : undefined;
+  }
+
   const isMainButtonVisible = isLoaded && mainButton?.isVisible && hasBottomButtonContent(
     mainButton.text,
     mainButton.iconCustomEmojiId,
@@ -674,16 +678,21 @@ const WebAppModalTabContent: FC<OwnProps & StateProps> = ({
     }
 
     if (eventType === 'web_app_set_background_color') {
-      setBackgroundColorFromEvent(validateHexColor(eventData.color) ? eventData.color : undefined);
+      const validColor = getValidHexColor(eventData.color);
+      if (validColor) setBackgroundColorFromEvent(validColor);
     }
 
     if (eventType === 'web_app_set_header_color') {
+      const validColor = getValidHexColor(eventData.color);
       const key = eventData.color_key;
-      setHeaderColorFromEvent(eventData.color || (key ? themeParams[key] : undefined));
+      const fallback = key ? themeParams[key] : undefined;
+      const color = validColor || fallback;
+      if (color) setHeaderColorFromEvent(color);
     }
 
     if (eventType === 'web_app_set_bottom_bar_color') {
-      setBottomBarColor(eventData.color);
+      const color = getValidHexColor(eventData.color);
+      if (color) setBottomBarColor(color);
     }
 
     if (eventType === 'web_app_data_send') {
@@ -696,33 +705,43 @@ const WebAppModalTabContent: FC<OwnProps & StateProps> = ({
     }
 
     if (eventType === 'web_app_setup_main_button') {
-      const color = eventData.color;
-      const textColor = eventData.text_color;
-      setMainButton({
-        isVisible: eventData.is_visible && hasBottomButtonContent(eventData.text, eventData.icon_custom_emoji_id),
-        isActive: eventData.is_active,
-        text: eventData.text,
-        color,
-        textColor,
-        isProgressVisible: eventData.is_progress_visible,
-        iconCustomEmojiId: eventData.icon_custom_emoji_id,
-        hasShineEffect: eventData.has_shine_effect,
+      setMainButton((prevButton) => {
+        const color = getValidHexColor(eventData.color) || prevButton?.color
+          || themeParams.button_color;
+        const textColor = getValidHexColor(eventData.text_color) || prevButton?.textColor
+          || themeParams.button_text_color;
+
+        return {
+          isVisible: eventData.is_visible && hasBottomButtonContent(eventData.text, eventData.icon_custom_emoji_id),
+          isActive: eventData.is_active,
+          text: eventData.text,
+          color,
+          textColor,
+          isProgressVisible: eventData.is_progress_visible,
+          iconCustomEmojiId: eventData.icon_custom_emoji_id,
+          hasShineEffect: eventData.has_shine_effect,
+        };
       });
     }
 
     if (eventType === 'web_app_setup_secondary_button') {
-      const color = eventData.color;
-      const textColor = eventData.text_color;
-      setSecondaryButton({
-        isVisible: eventData.is_visible && hasBottomButtonContent(eventData.text, eventData.icon_custom_emoji_id),
-        isActive: eventData.is_active,
-        text: eventData.text,
-        color,
-        textColor,
-        isProgressVisible: eventData.is_progress_visible,
-        iconCustomEmojiId: eventData.icon_custom_emoji_id,
-        hasShineEffect: eventData.has_shine_effect,
-        position: eventData.position,
+      setSecondaryButton((prevButton) => {
+        const color = getValidHexColor(eventData.color) || prevButton?.color
+          || themeParams.button_color;
+        const textColor = getValidHexColor(eventData.text_color) || prevButton?.textColor
+          || themeParams.button_text_color;
+
+        return {
+          isVisible: eventData.is_visible && hasBottomButtonContent(eventData.text, eventData.icon_custom_emoji_id),
+          isActive: eventData.is_active,
+          text: eventData.text,
+          color,
+          textColor,
+          isProgressVisible: eventData.is_progress_visible,
+          iconCustomEmojiId: eventData.icon_custom_emoji_id,
+          hasShineEffect: eventData.has_shine_effect,
+          position: eventData.position,
+        };
       });
     }
 
diff --git a/src/util/media/ipRevealingMedia.ts b/src/util/media/ipRevealingMedia.ts
index 33da19c82..4b241bd04 100644
--- a/src/util/media/ipRevealingMedia.ts
+++ b/src/util/media/ipRevealingMedia.ts
@@ -1,17 +1,26 @@
 import { SVG_EXTENSIONS } from '../../config';
 
 const UNSAFE_MIME_TYPES = new Set(['text/html', 'image/svg+xml']);
+const UNSAFE_MIME_SUBTYPES = new Set(['html', 'svg+xml', 'xhtml+xml', 'xml']);
 const UNSAFE_EXTENSIONS = new Set([
   ...SVG_EXTENSIONS,
   'htm', 'html', 'svg', 'm4v', 'm3u', 'm3u8', 'xhtml', 'xml',
 ]);
 
 export function isIpRevealingMedia({ mimeType, extension }: { mimeType?: string; extension: string }) {
-  if (mimeType && UNSAFE_MIME_TYPES.has(mimeType)) {
+  const normalizedMimeType = mimeType?.split(';')[0].trim().toLowerCase();
+  const normalizedMimeSubtype = normalizedMimeType?.split('/').pop()?.trim();
+  const normalizedExtension = extension.trim().toLowerCase();
+
+  if (normalizedMimeType && UNSAFE_MIME_TYPES.has(normalizedMimeType)) {
     return true;
   }
 
-  if (UNSAFE_EXTENSIONS.has(extension)) {
+  if (normalizedMimeSubtype && UNSAFE_MIME_SUBTYPES.has(normalizedMimeSubtype)) {
+    return true;
+  }
+
+  if (UNSAFE_EXTENSIONS.has(normalizedExtension)) {
     return true;
   }