gfx/hud/useablehint
{
    {
        map gfx/hud/useablehint_circle
        blendFunc GL_ONE GL_ONE
        rgbGen wave sawtooth 0 1 0 0.75
    }
    {
        map gfx/hud/useablehint
        blendFunc GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
    }
}