A dark theme inspired by Telegram desktop Dark Mojave theme for Slack

// install theme
npx install-dark-theme
// rollback original theme
npx install-dark-theme --rollback  

If you already using dark-theme reinstall theme again to have latest changes, new link is https://dark-theme.netlify.com

NB: You'll have to do this every time Slack updates.

npx install-dark-theme  

Arguments
npx install-dark-theme --rollback restore original theme

npx install-dark-theme --force force theme installing

Find your Slack's application directory.

• Windows: %homepath%\AppData\Local\slack\app-3.3.0\resources\app.asar.unpacked\src\static
• Mac: /Applications/Slack.app/Contents/Resources/app.asar.unpacked/src/static
• Linux: /usr/lib/slack/resources/app.asar.unpacked/src/static (Debian-based)

Open ssb-interop.js and add at the very bottom

document.addEventListener('DOMContentLoaded', function () {
    $.ajax({
        url: 'https://dark-theme.netlify.com',
        success: function (css) {
            $("<style></style>").appendTo('head').html(css);
        }
    });
});  

That's it! Restart Slack and see how well it works.

Clone the repo and run commands using yarn/npm

yarn
yarn start

Find your Slack's application directory.

• Windows: %homepath%\AppData\Local\slack\app-3.3.0\resources\app.asar.unpacked\src\static
• Mac: /Applications/Slack.app/Contents/Resources/app.asar.unpacked/src/static
• Linux: /usr/lib/slack/resources/app.asar.unpacked/src/static (Debian-based)

Open ssb-interop.js and add at the very bottom

1. Comment the part related to installation from section above!

2. Copy text and replace constant customTheme

// Change to path to style.css in repository
const customTheme = '/Users/YOUR_USER/REPOSITORY_PATH/style.css';

const URL = 'http:https://localhost:8080/style.css';
const createStyle = () => {
  const el = document.getElementById('custom');
  if (el) {
    el.parentNode.removeChild(el);
  }
  const style = document.createElement('link')
  style.setAttribute('type', 'text/css');
  style.setAttribute('rel', 'stylesheet');
  style.href = URL + '?zz=' + Date.now();
  style.id = 'custom';
  document.head.appendChild(style)
}
require('fs').watchFile(customTheme, createStyle);
document.addEventListener('DOMContentLoaded', createStyle);

3. Run command "yarn start" in repo

Open slack

Mac: export SLACK_DEVELOPER_MENU=true; open -a /Applications/Slack.app

Windows: C:\Windows\System32\cmd.exe /c " SET SLACK_DEVELOPER_MENU=TRUE && start C:\Users\CHANG_USER\AppData\Local\slack\slack.exe

Change windows user!

Project based on slack-black-theme. Thanks to widget- and contributors.

MIT