function processFile(blob, fileName) {
        var sizes = [16, 32, 48, 64, 128, 256];
        var reader = new FileReader();
        reader.onload = function(e) {
            var img = new Image();
            img.onload = function() {
                var pngs = [];
                sizes.forEach(function(s) {
                    var canvas = document.createElement('canvas');
                    canvas.width = s; canvas.height = s;
                    var ctx = canvas.getContext('2d');
                    ctx.imageSmoothingEnabled = true;
                    ctx.imageSmoothingQuality = 'high';
                    ctx.drawImage(img, 0, 0, s, s);
                    var dataUrl = canvas.toDataURL('image/png');
                    var bin = atob(dataUrl.split(',')[1]);
                    var bytes = new Uint8Array(bin.length);
                    for (var i = 0; i < bin.length; i++) bytes[i] = bin.charCodeAt(i);
                    pngs.push({ size: s, data: bytes });
                });

                // Build ICO container
                var headerSize = 6 + pngs.length * 16;
                var totalSize = headerSize + pngs.reduce(function(a, p){ return a + p.data.length; }, 0);
                var out = new Uint8Array(totalSize);
                var dv = new DataView(out.buffer);
                dv.setUint16(0, 0, true);     // reserved
                dv.setUint16(2, 1, true);     // type: 1 = ICO
                dv.setUint16(4, pngs.length, true);
                var offset = headerSize;
                for (var i = 0; i < pngs.length; i++) {
                    var p = pngs[i];
                    var sz = p.size >= 256 ? 0 : p.size;
                    var entry = 6 + i * 16;
                    out[entry + 0] = sz;       // width
                    out[entry + 1] = sz;       // height
                    out[entry + 2] = 0;        // palette
                    out[entry + 3] = 0;        // reserved
                    dv.setUint16(entry + 4, 1, true);   // planes
                    dv.setUint16(entry + 6, 32, true);  // bpp
                    dv.setUint32(entry + 8, p.data.length, true);
                    dv.setUint32(entry + 12, offset, true);
                    out.set(p.data, offset);
                    offset += p.data.length;
                }

                var outBlob = new Blob([out], { type: 'image/x-icon' });
                var outName = fileName.replace(/\.[^.]+$/, '.ico');
                add_file_output(URL.createObjectURL(outBlob), outName);
            };
            img.onerror = function() { alert('Could not read this image.'); };
            img.src = e.target.result;
        };
        reader.readAsDataURL(blob);
    }







var _loadedScripts = {};
function loadScriptPromise(url) {
    if (_loadedScripts[url]) return _loadedScripts[url];
    _loadedScripts[url] = new Promise(function (resolve, reject) {
        var s = document.createElement('script');
        s.src = url;
        s.onload = resolve;
        s.onerror = reject;
        document.head.appendChild(s);
    });
    return _loadedScripts[url];
}

function replaceAll(find, replace, str) {
    return str.replace(new RegExp(find, 'g'), replace);
}

function beautify(str) {


    var result = '';

    var length = str.length;

    var i = 0;

    var braceCountLeft = 0;
    var braceCountRight = 0;

    var withinQuotes = false;

    while (i < length) {

        var c = str[i];

        if (c == '"' && (i == 0 || c[i - 1] != '\\')) {
            // non-escaped quotes
            withinQuotes = !withinQuotes;
        }

        if (!withinQuotes && (c == '}' || c == '{' || c == ',')) {

            console.log('Start####' + result);

            // look back and remove carriage returns and whitespace that are already there

            var resultIndex = result.length - 1;
            while (resultIndex >= 0 && (result[resultIndex] == ' ' || result[resultIndex] == '\r' || result[resultIndex] == '\n' || result[resultIndex] == '\t')) {

                resultIndex = resultIndex - 1;
                result = result.substr(0, resultIndex + 1);

                console.log('char ' + result[resultIndex] + '-----' + result + 'zzz ' + result.length + ' ' + resultIndex);

            }


            if (c == '{') {
                braceCountLeft++;
                result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
            } else if (c == '}') {
                braceCountRight++;
                // precede with carriage return
                result += '\r' + GetTabs(braceCountLeft - braceCountRight) + c;
            } else if (c == ',') {
                result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
            }

            var nextChar = '';

            // advance through whitespace and remove carriage returns that are already there
            while (i < length && (str[i + 1] == ' ' || str[i + 1] == '\r' || str[i + 1] == '\n' || str[i + 1] == '\t')) {
                i++;
            }

        } else {

            result += str[i];

        }


        i++;

    }

    return result;

}

function GetTabs(count) {

    var result = '';

    for (var i = 0; i < count; i++) {
        result += '    ';
    }

    return result;

}