In Code Maker, selecting or deselecting whole pen sets now rematches all unlocked pens where possible. Unlocking a pen also rematches it from your selected sets where possible. Locked pens keep their choices.
On a Page with estimated colours, take or upload a photo of your printed colour key, then tap each number's colour. Your pen matches follow your photo.
Or use a finished Page from the gallery: take the colours from that photo, or use the pens its maker chose. If the maker later removes the photo, your copy goes too; the colours you took stay.
Fix lighting uses the white paper in your photo to correct warm or dim light.
Every time you open a Page, a bar at the bottom tells you how far you can trust its colours.
The Page picker marks the Page you are colouring, and says Continue colouring on Pages you started.
Princesses Disney, tome 2: Page 7 now includes the missing dark green symbol. Its colour is estimated from a reader's photo; the other colours are unchanged.