I sometimes prefer the dark theme layout in RDi. Other days I prefer it light. I'm very indecisive. Don't be like me 😉

1. Open Preferences

  • Go to the top menu: Window → Preferences

2. Navigate to the Appearance Settings

  • In the left sidebar, open:General → Appearance

3. Choose Your Theme

  • In the Theme dropdown, select:

    • Dark — for the Eclipse dark theme

    • Light — the default RDi theme

4. Apply the Change

  • Click Apply and Close

  • RDi will usually prompt you to restart.

    • If it does, restart to fully apply the theme.

RDi uses Eclipse under the hood

So the theme options depend on the Eclipse version bundled with your RDi release.

  • RDi 9.6+ includes the standard Dark theme.
  • Older versions may require installing the Eclipse dark theme manually.

Some UI elements may not fully theme

Because RDi includes IBM‑specific views (like Outline, Error List, Remote Systems), a few panels may stay light even in Dark mode. That’s normal.

Here's what RDi looks like in dark mode with LPEX configured:

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}
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