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