What the heck, I might as well just post all my gradient scripts. To use them (all of them), just type 'start commannd'(Start value X, Start value Y, end value X, end value Y, property start value, property stop value.

Wifi: 

function wifilist(xstart,ystart,xstop,ystop,tempstart,tempstop)
elemtype = tpt.input("Element Type","This is the element it will be drawn in")
xincrement = (xstop - xstart) / (tempstop - tempstart)
yincrement = (ystop - ystart) / (tempstop - tempstart)
while tempstart < tempstop + 1 do
tpt.create(xstart,ystart,elemtype)
tpt.set_property('temp',tempstart * 100,xstart,ystart)
tempstart = tempstart + 1 -- going to the next value
xstart = xstart + xincrement
ystart = ystart + yincrement
end
end

tmp2:

function tmp2list(xstart,ystart,xstop,ystop,tmp2start,tmp2stop)
elemtype = tpt.input("Element Type","This is the element it will be drawn in")
xincrement = (xstop - xstart) / (tmp2stop - tmp2start)
yincrement = (ystop - ystart) / (tmp2stop - tmp2start)
while tmp2start < tmp2stop + 1 do
tpt.create(xstart,ystart,elemtype)
tpt.set_property('tmp2',tmp2start,xstart,ystart)
tmp2start = tmp2start + 1 -- going to the next value
xstart = xstart + xincrement
ystart = ystart + yincrement
end
end

Channel (or temp, it says channel but it's really just doing temp)

function chanlist(xstart,ystart,xstop,ystop,tempstart,tempstop)
elemtype = tpt.input("Element Type","This is the element it will be drawn in")
xincrement = (xstop - xstart) / (tempstop - tempstart)
yincrement = (ystop - ystart) / (tempstop - tempstart)
while tempstart < tempstop + 1 do
tpt.create(xstart,ystart,elemtype)
tpt.set_property('temp',tempstart * 100,xstart,ystart)
tempstart = tempstart + 1 -- going to the next value
xstart = xstart + xincrement
ystart = ystart + yincrement
end
end

Element type (Of course, it already has a thread of its own, but we don't want it to feel left out, do we? It is the most important one)

function elemlist(xstart,ystart,xstop,ystop,elemtype,elemstop)
xincrement = (xstop - xstart) / (elemstop - elemtype)
yincrement = (ystop - ystart) / (elemstop - elemtype)
while elemtype < elemstop + 1 do
tpt.create(xstart,ystart,elemtype)
if elemtype < 145 or elemtype > 146 then
elemtype = elemtype + 1 -- going to the next element
xstart = xstart + xincrement
ystart = ystart + yincrement
elseif elemtype > 144 and elemtype < 146 then
elemtype = elemtype + 2 -- skipping element 145, it bugs for some reason
end
end

end

And life.

function lifelist(xstart,ystart,xstop,ystop,lifestart,lifestop)
elemtype = tpt.input("Element Type","This is the element it will be drawn in")
xincrement = (xstop - xstart) / (lifestop - lifestart)
yincrement = (ystop - ystart) / (lifestop - lifestart)
while lifestart < lifestop + 1 do
tpt.create(xstart,ystart,elemtype)
tpt.set_property('life',lifestart,xstart,ystart)
lifestart = lifestart + 1 -- going to the next value
xstart = xstart + xincrement
ystart = ystart + yincrement
end
end

Filt (Don't worry about temp, 1 is darkest blue, 12 or so is red)

function filtlist(xstart,ystart,xstop,ystop,colstart,colstop)
elemtype = tpt.input("Element Type","Of course you want filt, but you can do really anything else.")
xincrement = (xstop - xstart) / (colstop - colstart)
yincrement = (ystop - ystart) / (colstop - colstart)
colstart = colstart + 472.15
colstop = (colstop + 473.15) * 50
while colstart < colstop + 1 do
tpt.create(xstart,ystart,elemtype)
tpt.set_property('temp',colstart,xstart,ystart)
colstart = colstart + 50 -- going to the next value
xstart = xstart + xincrement
ystart = ystart + yincrement
end
end

All of them are free to copy, for whatever purpose, no credit needed. Feel free to post modifications or suggestions!

EDITED: Even better script! More versatile, and you don't need to make a new script for each property!

--STILL NEED TO TEST! Don't rely on it working...
function list(xstart,ystart,xstop,ystop)
valuer = 0
valueg = 0
valueb = 0
property = tpt.input("Gradient Variable","Draws a gradient with this variable")
if property ~= 'type' then
type = tpt.input("Element type","Draws a gradient in this element")
end
if property ~= 'dcolor' and property ~= 'dcolour' then
start = tpt.input("Start value","Draws a gradient starting at this value")
stop = tpt.input("Stop value","Draws a gradient stopping at this value")
elseif property == 'dcolor' or property == 'dcolour' then
valuer = tpt.input("Red start value","Draws a gradient starting at this value")
valueg = tpt.input("Green start value","Draws a gradient starting at this value")
valueb = tpt.input("Blue start value","Draws a gradient starting at this value")
stopr = tpt.input("Red stop value","Draws a gradient stopping at this value")
stopg = tpt.input("Green stop value","Draws a gradient stopping at this value")
stopb = tpt.input("Blue stop value","Draws a gradient stopping at this value")
end
if property ~= 'dcolor' and property ~= 'dcolour' then
xincrement = (xstop - xstart) / (stop - start)
yincrement = (ystop - ystart) / (stop - start)
elseif property == 'dcolor' or property == 'dcolour' then
rincrement = (xstop - xstart) / (valuer - stopr)
gincrement = (xstop - xstart) / (valueg - stopg)
bincrement = (xstop - xstart) / (valueb - stopb)
end
while value < stop + 1 do
tpt.create(xstart,ystart,type)
if property ~= 'dcolor' and property ~= 'dcolour' then
tpt.set_property(property,value,xstart,ystart)
elseif property == 'dcolor' or property == 'dcolour' then
tpt.set_property(property,valuer*65536+valueg*256+valueb+16777216*255,xstart,ystart)
if value ~= 145 then
value = value + 1 -- going to the next element
xstart = xstart + xincrement
ystart = ystart + yincrement
elseif value == 145 then
value = value + 2 -- skipping element 145, it bugs for some reason
elseif property == 'dcolor' or property == 'dcolour' then
valuer = valuer + 1
valueg = valueg + 1
valueb = valueb + 1
xstart = xstart + (rincrement + gincrement + bincrement) / 3
ystart = ystart + (rincrement + gincrement + bincrement) / 3
end
end
end
end

Umm...it only really does one thing, and people have done it lots of times before, but OK.