The error message “the selected imageformatgroup is not supported by iOS. defaulting to brga8888” means that the image format you have selected is not compatible with iOS devices. In this case, iOS will automatically default to using the brga8888 image format.
The brga8888 format represents an image with 8 bits per component (red, green, blue, and alpha) and a premultiplied alpha channel. It is commonly used in graphics and image processing.
To fix this issue, you should choose an image format that is supported by iOS. The supported image formats on iOS include JPEG, PNG, and HEIC. Here are some examples of how you can use these formats:
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JPEG: JPEG is a lossy compression format that is great for photographs and complex images. It supports millions of colors but sacrifices some image quality. You can use the following code to display a JPEG image in HTML:
<img src="image.jpg" alt="JPEG Image"> -
PNG: PNG is a lossless compression format that supports transparency. It is commonly used for icons, logos, and simple graphics. You can use the following code to display a PNG image in HTML:
<img src="image.png" alt="PNG Image"> -
HEIC: HEIC is a modern image format introduced in iOS 11. It offers high-quality compression and supports transparency. However, its compatibility with web browsers may be limited. You can use the following code to display a HEIC image in HTML:
<img src="image.heic" alt="HEIC Image">
Make sure to replace “image.jpg”, “image.png”, and “image.heic” with the actual file names and paths of your images. By choosing a supported image format, you can ensure that your images are displayed correctly on iOS devices.