Blue marks?
Some blue marks appeared on the stitches during the hydrator step. Not all the stitches are like this. They disappear when the bag dries. What caused this and what can I do about it?
Also, there are uneven colour due to sun exposure. If I repeat the hydrator-fatliquor cycle, can the colour be more even? See the top portion is lighter than the bottom beige portion in the photo.
