chore: add jimp dependency, icon padding script, and update configuration
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import { isNodePattern, throwError } from "@jimp/utils";
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/**
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* Masks a source image on to this image using average pixel colour. A completely black pixel on the mask will turn a pixel in the image completely transparent.
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* @param {Jimp} src the source Jimp instance
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* @param {number} x the horizontal position to blit the image
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* @param {number} y the vertical position to blit the image
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* @param {function(Error, Jimp)} cb (optional) a callback for when complete
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* @returns {Jimp} this for chaining of methods
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*/
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export default () => ({
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mask(src, x = 0, y = 0, cb) {
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if (!(src instanceof this.constructor)) {
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return throwError.call(this, "The source must be a Jimp image", cb);
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}
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if (typeof x !== "number" || typeof y !== "number") {
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return throwError.call(this, "x and y must be numbers", cb);
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}
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// round input
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x = Math.round(x);
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y = Math.round(y);
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const w = this.bitmap.width;
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const h = this.bitmap.height;
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const baseImage = this;
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src.scanQuiet(
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0,
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0,
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src.bitmap.width,
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src.bitmap.height,
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function (sx, sy, idx) {
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const destX = x + sx;
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const destY = y + sy;
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if (destX >= 0 && destY >= 0 && destX < w && destY < h) {
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const dstIdx = baseImage.getPixelIndex(destX, destY);
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const { data } = this.bitmap;
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const avg = (data[idx + 0] + data[idx + 1] + data[idx + 2]) / 3;
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baseImage.bitmap.data[dstIdx + 3] *= avg / 255;
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}
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}
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);
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if (isNodePattern(cb)) {
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cb.call(this, null, this);
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}
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return this;
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},
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});
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