A value from 0 ot 255 specifying the intensity of the red component of the erase color.
<button> <clock> <picture> <shape> <text> <video>
Higher values mean the color is more red.
The following displays the value of erasecolorred in a text stimulus:
<text sometext>
/ items= ("erasecolorred = <% text.sometext.erasecolorred %>")
</text>
The following displays the value of erasecolorred in an instruction page:
<page somepage>
erasecolorred = <% text.sometext.erasecolorred %>
</page>