Change the TextBox highlight color when a user selects text?
<p>I've been looking for the way to change the textbox highlight color when a user select text. Windows uses blue as default color. For example, on Microsoft Outlook, when you write a mail and select (highlight) text, the back color is gray. </p>

<p><img src="https://i.imgur.com/j7PIU7B.png" alt="Selected text in Outlook"></p>

<p><img src="https://i.imgur.com/yy6bKvd.png" alt="TextBox selected text by user"></p>

<p>Everybody said that I need to override onPaint method but i don't know how exactly to do that. The RichTextbox selectedbackground color is not the solution because it changes the color for the text, not when the user selects it.</p>