Related to phetsims/sun#252, this sim relies on the old default of align:'right' for Panels. Below are the stack traces for occurrences that need to be checked. These are the occurrences noted when loading the sim in requirejs mode. If the sim creates Panels dynamically, you should do further checking with fuzzMouse.

>>>> sim relies on align:right
VM28674 Panel.js?bust=1472165043316:54 Error
    at Toolbox.Panel [as constructor] (http://localhost/~cmalley/GitHub/sun/js/Panel.js?bust=1472165043316:50:15)
    at new Toolbox (http://localhost/~cmalley/GitHub/seasons/js/intensity/view/Toolbox.js?bust=1472165043316:45:11)
    at new IntensityView (http://localhost/~cmalley/GitHub/seasons/js/intensity/view/IntensityView.js?bust=1472165043316:55:19)
    at IntensityScreen.Screen.call.backgroundColor [as createView] (http://localhost/~cmalley/GitHub/seasons/js/intensity/IntensityScreen.js?bust=1472165043316:27:34)
    at IntensityScreen.initializeView (http://localhost/~cmalley/GitHub/joist/js/Screen.js?bust=1472165043316:134:25)
    at IntensityScreen.initializeModelAndView (http://localhost/~cmalley/GitHub/joist/js/Screen.js?bust=1472165043316:151:12)
    at initializeScreen (http://localhost/~cmalley/GitHub/joist/js/Sim.js?bust=1472165043316:441:14)
    at Array.forEach (native)
    at new Sim (http://localhost/~cmalley/GitHub/joist/js/Sim.js?bust=1472165043316:439:13)
    at http://localhost/~cmalley/GitHub/seasons/js/seasons-main.js?bust=1472165043316:28:15

Currently the panel knob always points down. It should rotate with the panel.

At one point, it was recommended that we add smoke/ice/cracking to the heat panel. I'm not sure if it is necessary any more after the thermometer was added.

Creating in response to phetsims/hookes-law#25 and phetsims/tasks#358 (before being told to not test anything yet 😄 ):

During the small window of time that a panel is set in front of the light, or being returned to the box (you have to click fast!), grabbing another panel (or the same) during this quick animation will cause the panel to not resize or be recognized as "playable":

Video:

https://drive.google.com/file/d/0B3HJopSo_QqLODFzemhJek5lY2c/view?usp=sharing

Troubleshooting information (do not edit):
Name: Seasons
URL: http://www.colorado.edu/physics/phet/dev/html/seasons/1.0.0-dev.10/seasons_en.html
Version: 1.0.0-dev.10
Features missing: touch
User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Language: en-US
Window: 1366x633
Pixel Ratio: 1/1
WebGL: WebGL 1.0
GLSL: WebGL GLSL ES 1.0
Vendor: Mozilla (Mozilla)
Vertex: attribs: 16 varying: 28 uniform: 1024
Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 32)
Max viewport: 32767x32767
OES_texture_float: true

My notes say:

"yellow" highlight for incoming beam? bdb9b9 opacity 30%, Needs to be double checked

I think it means we need to double check the coloring of the incoming light, given its transparency value.

As discussed in phetsims/joist#387 (comment), it would be nice to use Twixt instead of TWEEN. This sim has 3 occurrences of new TWEEN.Tween(...). Assigning to the responsible dev. After completing this issue, check if the hold on phetsims/joist#387 can be removed (if this was the last "Convert from TWEEN to Twixt" issue).

Solar panel light should "spill off" when the solar panel is at an angle

Incorrect hit areas for the top of panels, caused by phetsims/kite#34

For the heat view fading, try a fade on the edges of the light beam, like a gradient that fades away. Could be just over 3-4 px. If a radial gradient doesn't work, try a constant but non opaque border.

See original mockup. My notes say:

I'll try to render the gridlines in Solar cell programmatically, but may have to make concessions to fit performance goals.. ok to proceed. SR will try a few things first. Will try a 3x3 or 4x4 grid of white lines, with an option to add squares at intersections afterwards if necessary

I am a teacher at Istek Schools in Turkey. We are using your simulations and very very useful for us. Good job! You are doing good things for kids. Thanks for all.
Can you make "seasons at earth" in simulations at Earth science?
We need this.

PropertySet is deprecated and should be replaced by Property, see phetsims/axon#102. Since this sim hasn't been published yet, this should be done before RC testing and publishing.