[matmen]

Every method with optional arguments now also takes them as an options object, so options can be left out or added without counting positions:

image.resize(100, 100, {mode: Image.RESIZE_BICUBIC});
image.composite(logo, {x: 10, y: 10, opacity: 0.5});
Image.renderText(font, 32, 'Hi', {color: 0xff0000ff, strokeWidth: 2});
new Frame(10, 10, {duration: 50});
animation.encodeGIF({quality: 80});
image.encodeJPEG({quality: 80, metadata: {author: 'me'}});

Covered: the resize methods, opacity/red/green/blue/lightness/saturation, composite, sharpen, roundCorners, fisheye, every encoder, renderSVG, renderText, Frame and Frame.from, Animation, Animation.decode() and decode() (onlyFirstFrame, applyOrientation).

• The positional arguments keep working until 4.0.
• encode() still takes metadata as its first argument, because metadata and the options don't share any keys.
• The metadata arguments that the other encoders got earlier in 3.2.0 (unreleased) only exist as the metadata option, so no new positional arguments are released.