Once you have done your initial set up of the thermometer bar, you may wish to change the goal at any time (the default is $10,000) and the colour of the thermometer bar.
To do this, click on the cog to the top left of the actual thermometer bar
This will open up the following
At all times, please leave the Progress Bar Name as bar however this allows you to change the Bar Colour, the Appeal Goal and add offset amounts (perhaps offline donations or via other sources)
Once done, please click the cross and publish the page