If you are using Sublime, which is a very fast and lightweight text editor, to create smart contracts in Solidity, to get syntax highlighting, do the following:
⌘+⇧+P (command+shift+P) to bring up Sublime’s command palette, which is an interactive list whose purpose is to execute commands.
Start typing “install” and select “Install Package”.
Then wait a few seconds before another text box appears before typing “Ethereum” and select the first option.
Before:
After:
To check that it has been installed, bring up the command palette and type “remove” and select remove package and Ethereum should appear indicating that it has been successfully installed.
