Now you can change themes/colors on your forms based on your choice

#pragma region "Themes"


//---define my colors here. The Color = System.Drawing.Color object
        Color formColor;
        Color textColor;
        Color controlColor;

    private: System::Void rdoHalloween_CheckedChanged(System::Object^  sender, System::EventArgs^  e) 
			 {
		     
			            //change colors to black & white
                        formColor = Color::Orange;
                        textColor = Color::White;
                        controlColor = Color::Black;
                        SwitchTheme(formColor, textColor, controlColor);
			 
			 
			 }
    private: System::Void rdoValentine_CheckedChanged(System::Object^  sender, System::EventArgs^  e) 
		 
		     {
		                //change colors to pink & white & red
                        formColor = Color::Pink;
                        textColor = Color::White;
                        controlColor = Color::Red;
                        SwitchTheme(formColor, textColor, controlColor);
			 
			 }
	private: System::Void rdoNoTheme_CheckedChanged(System::Object^  sender, System::EventArgs^  e) 
			 {
						//Change colors to default
						formColor = Color::LightGray;
						textColor = Color::Black;
						controlColor = Color::White;
						SwitchTheme(formColor, textColor, controlColor);


			 }

#pragma endregion

#pragma region "Switch Themes"

			  private: System::Void SwitchTheme(Color formColor, Color textColor, Color controlColor)
        {

            this->BackColor = formColor;

            for each (Control^ myControl in this->Controls)
            {
                if (myControl->GetType() == System::Windows::Forms::TextBox::typeid | myControl->GetType() == Button::typeid)
                {
                    myControl->ForeColor = textColor;
                    myControl->BackColor = controlColor;
                }
                TextBox1->Focus();
            }
			
        }
#pragma endregion