Layout:

• Default layout. This is the default version.
• High contrast. This layout is suitable for people with low vision.

Font size:

• bigger. Increase font size.
• reset. Reset font size to default.
• smaller. Decrease font size.

• bigger. Increase font size
• reset. Reset font size to default
• smaller. Decrease font size

Legibility:

• Reset
• Low brightness
• Best legibility
  • Sans serif 
  • Serif 
  • Bold