A non-transitory computer-readable medium storing computer-readable instructions that, when executed by a processor of a device, cause the device to acquire pieces of thread color data, acquire image data representing an image, arrange line segments based on the image data, calculate a ratio of a first area occupied by a specific object with respect to the image, identify one or more pieces of first thread color data based on the ratio, identify one or more pieces of second thread color data based on the image data, allocate, to one or more of first line segments corresponding to the first area, first specific thread color data among the first thread color data, allocate, to one or more of second line segments corresponding to the second area, second specific thread color data among the first thread color data and the second thread color data, connect the line segments, and create embroidery data.