ambient_light value to vastly different numbers, like 0.001 and then 1000.Any change will only have an effect the next time you restart Oolite. Don't forget to hold down SHIFT when you restart the game, otherwise changes will not be recognized.
If you don't see any difference at all between changing the value, there are a couple of possible explanations.
a) Your planetinfo.plist isn't syntactically correct and therefore not recognized by the game. If you're on Windows and have used Notepad to create it, please throw the whole thing away and create another planetinfo.plist with Wordpad. Never use Notepad for editing anything Oolitey.
b) Your planetinfo.plist is syntactically correct, but saved at some wrong place. You can put it either directly in your AddOns-folder, or in a folder named 'Config' inside your AddOns folder. Note the spelling and upper/lower-cases. It needs to be 'AddOns', not 'addOns' or 'Addons'; and it needs to be 'Config', not 'config'.
c) One of your OXPs is overwriting your value with its own value for
ambient_light, thereby nullifying any change you made. A known culprit is System Redux.oxp. Please post a list of your OXPs, so we can rule that one out.Better still: please post your latest.log, which will tell us about possible syntax errors and OXP related problems.
