Customize freely!!
You can make the calculator of your favorite!!

[Features of calculator]
* Custom button : Register a Value of your choice
* Undo : maximum of 10 times
* Half : halve Life Points
* Count : there is a reset function
* Timer : number becomes blue in 40 minutes or more
* Log : maximum of 100 times (send e-mail)
* Web : Search card
* Dice & Coin : there is a log function
* Reversal : Life exchange
* Yu-Jo : player's Life Points become half the combined Life Points of both players

[Features of Counter]
* Zero button sets a number to 0
* Elemental Dragon marker

[Features of Settings menu]
* Value : Custom button Value Settings
* Alpha : Transparency of the button
* Corner : Corner of the button
* Border : Thickness of the border of the button