Any litterbox may have a contrasting streak or mark of any other color, and the main color may also have variable shades and hues.
On a related note, the colors seen on your screen are almost certainly not the exact color they actually are. Allowances should be made for the variables inherent in creating and displaying images.
The shipping cost will be going up drastically near the end of January. The United States Post Office has implemented dim weight pricing for package shipments, which raise our rates to California, for example, from $19.70 for a single litterbox to around $75, a near four fold price increase, effective January 26th 2020.
I have read the government report, and it explicitly states that the purpose of these policy changes is to extract value. The problem with this, is that it is tough to extract value when deliveries using the post office go to zero.
We are going to do all US shipping with UPS after shipping armageddon day, and heads up, it is ridiculously expensive.