Is there a way to color tabs of a tabpage in winforms?

An improved version of Ash’s answer:

private void tabControl_DrawItem(object sender, DrawItemEventArgs e)
{
    TabPage page = tabControl.TabPages[e.Index];
    e.Graphics.FillRectangle(new SolidBrush(page.BackColor), e.Bounds);

    Rectangle paddedBounds = e.Bounds;
    int yOffset = (e.State == DrawItemState.Selected) ? -2 : 1;
    paddedBounds.Offset(1, yOffset);
    TextRenderer.DrawText(e.Graphics, page.Text, e.Font, paddedBounds, page.ForeColor);
}

This code uses the TextRenderer class to draw its text (as .NET does), fixes problems with font clipping/wrapping by not negatively inflating the bounds, and takes tab selection into account.

Thanks to Ash for the original code.