Ultimately you should ensure you don’t drop below 2x, if that happens many devices will show an image that’s perceivably low resolution. As you resize the image the bar updates automatically. The “resolution report” bar below the stretching controls helps you assess the quality of the output image and whether there are enough pixels for high dpi (retina) and even normal size usage. “Fill” ensures the image covers the entire frame, but the image will be clipped at the frame edges. The “Fit” button ensures the entire image is visible, but will produce a horizontal or vertical letterboxing. If the “Stretch” checkbox is enabled, an appropriate scaling factor will be applied by Sparkle. Its position in the element frame can be aligned horizontally and vertically by using the six buttons: left, middle, right, top, middle, bottom. If the “Stretch” checkbox is disabled the image will maintain its original dimensions (and will be cropped or letterboxed if necessary). How the image fits the frame is controlled by the alignment and stretching controls. The image frame in the canvas is the maximum space for the image. Image options include a title text, which will be shown as a tooltip in most browsers, and a description text (sometimes referred to as the “alt tag”), which is an accessibility option used by screen readers and other assistive devices, but not otherwise visible in the browser. Other image formats are exported as JPEG, resized to the required sizes. ![]() GIF images are exported unchanged, while PNG and JPEG images are resized and compressed for the exact size used by the element. Sparkle will load most bitmap image types supported by the system, including JPEG, PNG, PNG with transparency, GIF, TIFF and digital negative (raw) camera files. The basic and most common image type is a bitmap image, which includes images coming from digital photography or image creation tools that aren’t expressly vector-based. ![]() Images have an initial placeholder look, which can be useful when you first rough out a layout without also adding content. You can replace an existing image by dropping it over the image thumbnail in the settings, or over the image in the canvas.Īn alternative to using the image element is setting the image as the background of a box. You add an image by dropping it into the canvas straight from the Finder, or from Photos, or by adding it from the “Add” popup. Images are also the main source of page weight, because browsers download them immediately along with the page.įor these reasons there are several ways to integrate images in the page and many options. Images are the best way to make your page interesting and distinctive, and they obviously inform, provide context and set the mood.
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