//RichTextBox ZMIANY KOLORU LINII;
public void ChangeLineForeColor(Color color, string expression, int numerLinii)
{
int start = KOD_RichTextBox.GetFirstCharIndexFromLine(numerLinii);
int koniec = expression.Length;
KOD_RichTextBox.SelectionStart = start;
KOD_RichTextBox.SelectionLength = koniec;
KOD_RichTextBox.SelectionColor = color;
}
public void ResetLinesColor()
{
KOD_RichTextBox.SelectAll();
KOD_RichTextBox.SelectionColor = Color.Black;
}