Gamma/Brightness filter

[accraze]

This PR is in reference to #8 video effects using css filters.

Two new things added:

• Settings control/popup for video playback (this only appears when a video is playing)
• Brightness filter for video (inside Settings popup)

[max-mapper]

nice!

screenshot was hard to get so its half faded out

the font size in the settings menu looks a little big compared to the rest of the fonts, but otherwise i'm +1. lays some nice groundwork for other settings

[mafintosh]

i agree with @maxogden on the font. looking good otherwise!

[zeke]

What are you watching, @maxogden?

[max-mapper]

iron chef america thanksgiving battle

[zeke]

lol

[freeall]

@maxogden not sure if it helps you in this case, but hitting space when taking a screenshot on osx selects the current window so you don't have to drag.

[accraze]

Thanks for the feedback guys! I resized the label down to 15px
... let me know if you think it should be a different size..

[mafintosh]

@accraze label size looks good now. i wonder if we could use the same slider as we use for volume control to have consistent ui across the app

[bmathews]

@mafintosh Just a heads up, I've been doing some experiments with refactoring and separating out the UI from the rest of the player/server code. It'll be another week or two until it's all finished though.

[mafintosh]

@bmathews oh sweet!

[accraze]

@mafintosh added the same slider to the brightness filter... lemme know if anything else needs changing