Inspired by the soft daylight and sea breezes of Istanbul, this theme blends calm turquoise tones with warm historical accents to create a serene yet expressive coding environment. Light, airy backgrounds keep the editor clean and comfortable, while teals, aquas, and muted golden hues add clarity and focus to essential syntax elements.
A light theme from the Codigrate Cities collection, released 2026-01-03. Tags: Mediterranean, Historic, Airy.
A free download from codigrate.com under the MIT licence: add it to your cart, enter the e-mail address the download link goes to, and get the theme file with its install steps.

Getting started on Slack
- Download the zip with the Download button. Inside is a small text file with the theme's four colors on one line.
- Open the text file and copy that line.
- In Slack, open Preferences → Themes, scroll to the bottom and paste the line into the custom theme field.
- In Preferences → Appearance, choose Light or Dark mode to match the theme; in Dark mode, turn on Darker sidebars.
- If you switch between light and dark mode, restart Slack so the theme applies correctly.
- Slack applies the theme instantly across the workspace.
Istanbul color palette
Every named color of the Istanbul palette, free to download for MacOS, CorelDRAW and Figma.
Istanbul on every platform
- Istanbul for JetBrains (free)
- Istanbul for Xcode ($2.99)
- Istanbul for VS Code (free)
- Istanbul for Chrome (free)
- Istanbul for Firefox (coming soon)
- Istanbul for Open VSX (free)
- Istanbul for Slack (free), this page
- Istanbul for MacOS Terminal (free)
- Istanbul for iTerm2 (free)
- Istanbul for Ghostty (free)
- Istanbul for Rhino (free)
- Istanbul for Zed (free)
- Istanbul for Sublime Text (free)
- Istanbul for Line
From the blog
- Anatomy of a Light Theme: Istanbul: Anatomy of Istanbul, a light IDE theme: marble white backgrounds, a midnight teal foreground, and syntax in Iznik turquoise, rooftop red and bazaar copper.