fix: correct ImageConfig parameters and document watermark limitation v1.0.1

Author: emdashcodes

.claude-plugin/marketplace.json

@@ -89,7 +89,7 @@
       "name": "nano-banana-image-editor",
       "source": "./plugins/nano-banana-image-editor",
       "description": "Create and edit images with natural language using Gemini 3 Pro Image. Use for image generation, photo editing, infographics, icons, style transfer, and text rendering. Includes Google Search grounding for factual content and PIL/Pillow for quick crops.",
-      "version": "1.0.0",
+      "version": "1.0.1",
       "author": {
         "name": "Em"
       },

plugins/nano-banana-image-editor/CHANGELOG.md

@@ -5,6 +5,17 @@ All notable changes to the nano-banana-image-editor plugin will be documented in
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.1] - 2025-11-21
+
+### Added
+
+- New "Recreating Templates with Different Characters" section in SKILL.md with guidance on passing both template and character references
+
+### Fixed
+
+- Corrected `ImageConfig` parameter names to use Python snake_case (`aspect_ratio` and `image_size` instead of camelCase `aspectRatio` and `imageSize`)
+- Documented that prompts requesting "remove watermark" trigger Gemini content policy blocks to protect SynthID watermarks
+
 ## [1.0.0] - 2025-11-21
 
 ### Added

plugins/nano-banana-image-editor/skills/nano-banana-image-editor/SKILL.md

@@ -125,6 +125,31 @@ ${CLAUDE_PLUGIN_ROOT}/skills/nano-banana-image-editor/.venv/bin/python3 ${CLAUDE
 
 ### Advanced Multi-Image Features
 
+#### Recreating Templates with Different Characters
+
+**Important**: When recreating memes, comics, or templates with different characters, **always pass both the template AND the character references**.
+
+```bash
+${CLAUDE_PLUGIN_ROOT}/skills/nano-banana-image-editor/.venv/bin/python3 ${CLAUDE_PLUGIN_ROOT}/skills/nano-banana-image-editor/scripts/create_image.py \
+  output.png "Recreate this meme template using these characters" \
+  --reference template.png --reference character1.png --reference character2.png \
+  --resolution 2K --aspect-ratio 16:9
+```
+
+**Why both?**
+
+- The **template/meme reference** provides the composition, layout, poses, and panel structure
+- The **character references** provide facial features, hairstyles, and distinctive characteristics to maintain
+
+**Example: Recreating a two-panel comic meme**
+
+```bash
+${CLAUDE_PLUGIN_ROOT}/skills/nano-banana-image-editor/.venv/bin/python3 ${CLAUDE_PLUGIN_ROOT}/skills/nano-banana-image-editor/scripts/create_image.py \
+  my-meme.png "Recreate this two-panel comic using these two women as the characters. Maintain the exact composition and poses from the template." \
+  --reference original-meme.png --reference my-characters.png \
+  --resolution 2K --aspect-ratio 16:9
+```
+
 #### Character Consistency (Up to 5 People)
 
 Create group photos maintaining facial resemblance:
@@ -225,6 +250,7 @@ ${CLAUDE_PLUGIN_ROOT}/skills/nano-banana-image-editor/.venv/bin/python3 ${CLAUDE
 - **Iterative editing**: Make one change at a time for better results
 - **Reference locations**: Use "top left", "bottom right", "center" to specify areas
 - **Use reference images**: Provide style examples, object references, or character photos when appropriate
+- **Pass ALL relevant references**: When recreating templates/memes with different characters, pass both the template image AND the character images as references
 - **Enable search for facts**: Add `--search` when generating content requiring real-time information
 
 **For comprehensive prompting strategies, see `references/prompting_guide.md`**
@@ -289,6 +315,12 @@ ${CLAUDE_PLUGIN_ROOT}/skills/nano-banana-image-editor/.venv/bin/python3 ${CLAUDE
 - Try breaking complex edits into multiple steps
 - Ensure input image quality is sufficient
 
+**"MALFORMED_FUNCTION_CALL" error when editing:**
+
+- **Do NOT request watermark removal** - Gemini blocks prompts mentioning "remove watermark" to protect SynthID watermarks
+- Avoid prompts like "remove the watermark" or "clean up watermarks"
+- This is a content policy restriction, not a technical limitation
+
 **Prompts with dollar signs or special characters getting stripped:**
 
 - **Problem:** Dollar signs (`$3`, `$4.50`) and other bash special characters get removed from prompts

plugins/nano-banana-image-editor/skills/nano-banana-image-editor/scripts/gemini_image.py

@@ -118,8 +118,8 @@ def generate_image(
     # Build image config with aspect ratio and resolution
     # Requires google-genai >= 1.48.0 (Python 3.10+)
     image_config = types.ImageConfig(
-        aspectRatio=aspect_ratio,
-        imageSize=resolution
+        aspect_ratio=aspect_ratio,
+        image_size=resolution
     )
 
     # Build generation config with image settings
@@ -157,7 +157,7 @@ def generate_image(
         sys.exit(1)
 
     # Save the image
-    if hasattr(response, 'parts'):
+    if hasattr(response, 'parts') and response.parts is not None:
         for i, part in enumerate(response.parts):
             # New API: check for as_image() method
             if hasattr(part, 'as_image'):