It's dangerous to code alone! Take this.

The Magic Cannon

The following is one possible solution to this challenge.

using System;

for (int number = 1; number <= 100; number++)
{
    if (number % 5 == 0 && number % 3 == 0)
    {
        Console.ForegroundColor = ConsoleColor.Cyan;
        Console.WriteLine($"{number}: Electric and Fire");
    }
    else if (number % 5 == 0)
    {
        Console.ForegroundColor = ConsoleColor.Yellow;
        Console.WriteLine($"{number}: Electric");
    }
    else if (number % 3 == 0)
    {
        Console.ForegroundColor = ConsoleColor.Red;
        Console.WriteLine($"{number}: Fire");
    }
    else
    {
        Console.ForegroundColor = ConsoleColor.Gray;
        Console.WriteLine($"{number}: Normal");
    }
}