Diversify block colours · Issue #3914 · scratchfoundation/scratch-gui · GitHub

Exploring Scratch: The World of Code Blocks

The Ultimate Scratch 3.0 Block Style Protest Megathread - Discuss Scratch

Introduction to Scratch coding

scratch 4.0 color blocks by jireh687e809f on DeviantArt

Ask(), Wait() and Answer() Block in Scratch Programming - GeeksforGeeks

Is there a way to tell if the input to a custom block is a specific block? - Snap! Editor - Snap! Forums

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How Do You Code on Scratch? Fun Blocks - Create & Learn

Use different color for extensions and custom blocks · Issue #1336 · scratchfoundation/scratch-blocks · GitHub