Play PoliCromix online

• Implemented flipbook steps for storybooks.
• Implemented support for purchasable storybooks/chapters.
• Added GP wallet.
• Removed unneeded calls to BCF API.
• Added workaround to an error thrown when comparing card XPs against empty values.
• Added an overlay to cards spawned after a mixing harvest in the farm.
• Added legend for cards yield from a mixing harvest in the card details view.
• Replaced "mixing" checkbox for a switch in the card planting modal at the farm.
• Tuned CSS styles.

Server side:

• Fixed issue on the depot that didn't set the proper level to purchased cards from cardspecs without level constraints.
• Excluded broken pots from the user's farm inventory.

Assets library updated:

• Added The Stars Court universe.