[Trauma Surgeon]

I've modified my answer. I like the mix on Passport and like DARK on Q10 - partly because it saves battery power. On Passport it is more a question of aesthetics as the battery life is excellent anyhows.

Posted via CB10

[karswarnava]

I've modified my answer. I like the mix on Passport and like DARK on Q10 - partly because it saves battery power. On Passport it is more a question of aesthetics as the battery life is excellent anyhows.

Posted via CB10

I think passport has lcd screen so in case of lcd there is nothing about saving power whether you have black or bright theme..

 BlackBerry Z3

[Trauma Surgeon]

I think passport has lcd screen so in case of lcd there is nothing about saving power whether you have black or bright theme..

 BlackBerry Z3

Sir, I believe a white pixel is the power-saver on LCD. Any tech gurus?

Posted via CB10

[karswarnava]

Sir, I believe a white pixel is the power-saver on LCD. Any tech gurus?

Posted via CB10

Yes what you believe is right but that is for bigger display (monitor / tv ) .In small display you can neglect the the amount .

White pixel is more power efficient than black theme..


CRT monitors, which until a few years ago were the predominant models among PC users, consume more power when a computer screen is white. To confirm this, Schindler measured the energy output of an 18-
inch (45.7-centimeter) CRT monitor and found it used 102 watts when the screen was white but only 79 watts when the display was black.

LCD displays rely on an array of thin-tube fluorescent bulbs that provide a constant source of light to create a white screen. To make it black, LCDs rely on a diffuser to block this light. As a result, LCDs use more energy than CRTs to display a black screen. Measuring a 17-inch (43-centimeter) LCD monitor, Schindler found that white required 22.6 watts, while black came in a tad higher at 23.2 watts. With a 20-inch (50.8-centimeter) LCD, black required 6 percent more energy than white.


Different types of screen :
http://www.quora.com/Does-a-white-ba...s-set-to-black

 BlackBerry Z3

[justinyc]

There should be a red theme to match the Red Passport.

Posted via CB10

[Dave Bourque]

Dark. Better on the battery and easier to read. I wish we could have a completely dark hub as well.

Posted via my awesome Red Passport SQW100-1/10.3.2.680 with T-Mobile Unlimited Data

It's only better for devices like the Q10 and Z30 because of the Amoled tech.

Z30STA100-5/10.3.2.680

[dualpassport]

Light

Posted via CB10

[kendrick272]

Dark theme here. Passport has a LCD screen which uses the same battery amount with either a dark or light theme. It is still on even in the black areas. A LED screen on the other hand would have the ability to turn off for black areas to theoretically save some battery.

True! And i will still go for dark theme.

[yyz321]

I prefer whichever one is more energy efficient.
Seems like sometimes my Passport doesn't last the whole day (12 hrs) without a charge.

My average battery life is 11hrs.

Posted via CB10

[anon(2325196)]

Dark

Posted via CB10

[solsearchin1]

If it ain't light, it ain't right.

[BeetrootJulip]

I prefer whichever one is more energy efficient.
Seems like sometimes my Passport doesn't last the whole day (12 hrs) without a charge.

My average battery life is 11hrs.

Posted via CB10

How intense is your use? That's pretty short battery life for a PP.

Posted via CB10

[anischab]

Dark on my Q10 and light on my Passport...
However: dark on both calendars and light on both hubs ;-)

Workhorse: BlackBerry|Q10, SQN100-3, OS 10.3.2.2639; Power Workhorse: BlackBerry|Passport, SQW100-1, OS 10.3.2.2639 ; Germany.

[yyz321]

How intense is your use? That's pretty short battery life for a PP.

Posted via CB10

I would say moderate use as I can usually go through a whole day without charging.

It's hard to give specific numbers, but I would say a heavy use day would be 1hr phone call, 30min of music through headphones, and a few hours worth of screen-on time.
I also have 4 e-mail accounts plus your regular social media and communication apps.

[anon(870071)]

Dark! I really like the contrasting effect!

 вιaсĸвεггч� Passport SQW100-1 / 10.3.2.2639 Rogers Wireless Posted via CB 

[m3ach]

Dark

Posted via CB10 using my Passport SQW100-1 running 10.3.2.2639

[sbrylski]

Which applications give you the choice of dark theme and light theme? Does anyone have a list, I prefer dark but I'm not sure I have everything that can be dark you know?

Posted via CB10

[ma678]

Dark theme

Posted via CB10 on Passport OG

[kthhrrsn]

Dark

Posted from my BlackBerry Passport on CB10

[Rene_Q10]

Allways dark.

Posted via CB10

[EmaliMcrtny]

Dark for me

�� ๓�  p姧p�ř�

[kuje75]

I like the light theme better. It feels more like BlackBerry since that's what I used to since bbos. But I use dark theme just for the sake of less battery usage. Some says that the battery usage is the same for either dark or light theme for Passport. I guess I'm just used to believe that dark theme consume less battery.

PassportSQW100-1/10.3.2.2813

[Arjun Sahota]

I always did light because it was uniform around the OS on the Q10 (settings & everything was black)

White seems to be the uniform color on the Passport, so I've stuck with white on this device.

Posted via BlackBerry Passport

[Asvertus]

Dark

[sansanakaduc]

Dark theme for my dark passenger.

Sent from the pure awesomeness of my  Passport SE