Nevin. See my lengthy reply to this in the Steam thread. (SisterMatic)
In short. You deleted the zone as soon as you entered it. So your original TEXT code would have flashed and disappeared.
If you delete the zone after you leave it or better yet, don't delete the zone (unless you intend to delete it) using the TextColor commands will work continuously *while* you remain in the zone.
Development/ Gaming Rigs
Sys 1: i7-4770 (3.5)/16Gb/128 SSD/3Tb/970gtx/2 x 23, 1 x 27 LCD - Sys 2: i7/8Gb/670gtx/1.5Tb/1 x 23 LCD - Sys 3: Amd Quad/8Gb/645gtx/1Tb/30" LCD