I read a lot more AI text than I write, and by the end of a long answer my eyes are tired. You don’t have to push through it. Each of these four tools has a display setting that changes how its answers look, and every one is quick to find. As always, AI can sound sure and still be wrong, so check anything about money, health, or safety against a real source, and keep private details out of tools you don’t fully trust.
Claude: chat Font and Color Mode
Claude lets you choose a color mode and a chat font, including a Dyslexic Friendly option.
- Log in and click your initials or name in the lower left corner.
- Go to Settings, then Appearance.
- Under Color mode, pick Light, Match System, or Dark.
- Under Chat font, pick Default, Match System, or Dyslexic Friendly.
When to reach for it: good for long reading sessions or late-night use. The support page lists no plan requirement. These settings change how Claude looks, not what it says, and the page notes you can’t completely turn off the sidebar.
Source: Anthropic: Customizing your appearance settings
ChatGPT: appearance, Contrast, and Accent Color
ChatGPT has separate settings for light or dark mode, contrast, and accent color.
- On the web or in the Windows app, open your profile icon, then Settings, then General.
- Under Appearance, pick System, Light, or Dark.
- Under Contrast, pick System, Medium, or Increased.
- Under Accent color, pick a color you like.
- On iOS or Android, open the profile menu, then Settings, to find Appearance and Accent color. Contrast is web and Windows only.
When to reach for it: reach for it when a bright screen feels harsh, or when someone at home needs stronger contrast. Appearance is saved on the device where you change it. Contrast shows most in light mode. OpenAI says options vary by platform, app version, plan, and rollout, so yours may look a little different.
Source: OpenAI: Updating your visual experience on ChatGPT
Copilot: ask Copilot to Make Your Screen Easier to Read
On Windows, Copilot can point you to the right setting when you describe the problem in plain words.
- Open Copilot on your Windows PC.
- Type or say, “Make my screen easier to read.”
- Copilot guides you to the relevant option in Windows Settings.
- Try another one, like “Help me focus by reducing distractions.”
When to reach for it: reach for it when you know the screen is hard on your eyes but don’t know which Windows setting fixes it. This page covers Copilot on Windows and says it applies to all Microsoft Copilot experiences, including personal, work or school, and free Copilot Chat. It says Copilot will guide you to the option, and it does not say Copilot makes the change for you or name settings like text size or contrast.
Source: Microsoft: Access Microsoft Copilot on Windows
Gemini: dark Theme
Gemini on the web has a Dark theme switch that is easy to miss.
- On your computer, go to gemini.google.com and sign in.
- At the bottom, click Settings & help.
- Turn Dark theme on.
- On your phone, the Gemini app follows your device’s theme, so change it in your phone’s display settings.
When to reach for it: good for late-night questions or a dim room. You have to be signed in. By default Gemini matches your device’s color scheme, and on the web your choice is remembered only on the same browser and device.
Source: Google: Use Dark theme in Gemini Apps
Try this
Pick the AI tool you use most and spend two minutes in its display settings. Try the darker mode, the stronger contrast, or the easier-to-read font for one evening. If your eyes feel better after a long chat, keep it. If not, switch it back, because it takes seconds either way.
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