You can customize font size and the appearance of the members pages here.
The default font size is 100%. If you click on the 80% or 90% buttons, the font size of the members pages will be smaller. Also, clicking on the 110% or 120% buttons will give you a bigger font size.
If you choose 120%, the buttons for starting your puzzles will also become bigger.
Appearance of your pages
The cat icon and the dog icon are from our members.
The two silhouettes are of NyanBaz and Momotereu. They are authors of nikoli.com and staff at Nikoli. They express the difficulty level with their whole body.
Change the skin
You can change the colors of your member's page. Click on color you want and you will get the member's page like that.
To return to the default color, click the "Reset" button.