Best practice is definitely to place images unscaled(!) with exactly the size you need them in your layout. In this case, Muse doesn’t even touch your images, and the output quality will be identical to the input quality. If you scale images, Muse will optimise them during output. It does a quite job in this, but normally you get better results, when you force Muse to leave the images unoptimised (= place them 1:1).
My personal workflow:
- I place image placeholders in the design (= the tool with the crossed out rectangle).
- I create my images in Photoshop in exactly the pixel dimensions of these placeholders. (If you have a HiDPI site, use exactly double pixel dimensions)
- I use the "Place" command to load the images into the so called place gun )that is the cursor, which appears and allows you to place one or multiple images), and import them directly into the placeholder frames.
If you want/need some more informations, just read my answers in this thread: https://forums.adobe.com/thread/1793996
If you have further questions, just ask!
So if the files are double the size image rectangles still preserve HiDPI, correct?
How about if I load an image fill in a normal rectangle?
Just try it!
If the resolution isn‘t sufficient, the „Assets“ panel won‘t show the „2x“ label.