【Update: 2022-04-11】

Due to the request I created 2nd stats screen, it can be found in Pack "Another Stats Screen"

This Pack contains:

◆ Number buttons (Pink. Blue and Purple version)

◇ 1x PSD (New Buttons)

◆ A new stats.rpy and chara.rpy

You can just replace the old stats.rpy and chara.rpy with the new ones. 

If you edited the stats.rpy or chara.rpy before, don't forget to save your edited code! (I recommend that you back up your original files before making any major changes)

By default, the number buttons are placed on the left side, but you can also use imagebutton to place the numbers at the bottom or elsewhere. (Ofc you can use imagemap to do that too)

Also by default I only put 4 pages but you can add or reduce more or less pages. 

With the psd file it should not be too difficult to do it (｡･ω･｡)

Preview: