Here is the full list of all 33 Chicory: A Colorful Tale achievements.
Destroyed the Brush.
Grew a brush
Sang with Chicory
Planted the Brushflowers
Collect 50% of decor
Shook Chicory's hand
Collect 50% of clothing items
Pick up 50% of litter
Painted your wielder self-portrait
Started the Wielder Trials
Met Queen Drosera
Pick up 25% of litter
Discover 50% of Brush Styles
Collect 25% of decor
Reveal 50% of the map
Collect 25% of clothing items
Chicory painted you
Return Beans' kids to her
Had a conversation with Chicory on the phone!
Met Chicory!
Pick up Chicory's brush
Collect all clothing items
Pick up all litter
Collect all decor
Discover all Brush Styles
Find all lost kids
Complete all art classes
Deliver mail for Artichoke
Delivered all of Artichoke's mail
Reveal 100% of the map
Fill in Gelato's photo gallery
Solve the mystery of stolen furniture
Solve all of Oats' outfit riddles