change the title field.
    this.originalTitle = title;
    this.title = title;
    this.colorId = colorId;
    this.args = args;
    this.startStackFrame = undefined;
    this.endStackFrame = undefined;
    this.didNotFinish = false;
    this.important = false;
    this.subSlices = [];
    this.parentContainer_ = undefined;

    this.id = undefined;
    this.startThread = undefined;
    this.endThread = undefined;
    this.cpuStart = undefined;
    this.cpuDuration = undefined;
    this.argsStripped = fals