How to optimize image to 100?

Frappe Framework
,
1

Hello guys, I have notice that when we attached an image in the document the image like change quality for 85%? and when I locate the method in frappe/utils/image.py I found this method that the quality really change to 85?

So my question here is:
How do I set the quality to 100?

Here is the method from frappe/utils/image.py
def optimize_image(content, content_type, max_width=1024, max_height=768, optimize=True, quality=85):
if content_type == “image/svg+xml”:
return content

try:
	image = Image.open(io.BytesIO(content))
	exif = image.getexif()
	width, height = image.size
	max_height = max(min(max_height, height * 0.8), 200)
	max_width = max(min(max_width, width * 0.8), 200)
	image_format = content_type.split("/")[1]
	size = max_width, max_height
	image.thumbnail(size, Image.Resampling.LANCZOS)

	output = io.BytesIO()
	image.save(
		output,
		format=image_format,
		optimize=optimize,
		quality=quality,
		save_all=True if image_format == "gif" else None,
		exif=exif,
	)
	optimized_content = output.getvalue()
	return optimized_content if len(optimized_content) < len(content) else content
except Exception as e:
	frappe.msgprint(frappe._("Failed to optimize image: {0}").format(str(e)))
	return content