Improvements
- Support range requests when downloading DICOMweb files ([1444](../../pull/1444))
- Bypass some scaling code when compositing multi sources ([1447](../../pull/1447), [1449](../../pull/1449))
- Do not create needless alpha bands in the multi source ([1451](../../pull/1451))
- Infer DICOM file size, when possible ([1448](../../pull/1448))
- Swap styles faster in the frame viewer ([1452](../../pull/1452))
- Reduce color fringing in multi source compositing ([1456](../../pull/1456))
- Retry read_region if openslide reports an error ([1457](../../pull/1457))
Bug Fixes
- Fix an issue with compositing sources in the multi source caused by alpha range ([1453](../../pull/1453))