Introducing Color Panel.
Step 1 of [Plate XVI] shows the first colored panel, straw ab placed between cd, the space between x and y having been already woven, as shown in step 11.
Step 2. Folding a to the right.
Step 3. Folding a under and down.
Step 4. Folding c over a and to left.
Step 5. Folding a over c and upward.
Step 6. Folding b under d to left.
Step 7. Folding b upward, with right twist downward.
Step 8. Folding d downward, with right twist to right.