Info: Monitor brightness TEST

[Imp]

The line is well defined & stands out well as it is several shades removed from the black background, I would describe it as a dark grey rather than a lighter shade of black.

There are free tests out there (try google) to allow people to set their monitors brightness contrast & gamma correctly so the monitor shows true colour to the best of its abilty.
That way things like photos display correctly as they assume you have your monitor set like this. As would most game designers I would guess & indeed these games look very good indeed on these settings.
I have seen it on other monitors both oversaturated making it look "gamey" & washed out with poor greys & greens, I would guess set to bright & lacking contrast, looked horrible.

XP & Win7 come with a very basic set of tests under display if I remember correctly that are better than nothng.

All monitors vary there are good & bad ones but it looks equally clear on my desktop & on my laptop. The laptop however has a small viewing angle otherwise the colours are washed out slightly. The line is still cllearly visible but the black is no longer a "rich" black its like the brightness is set to high & is possibly due to the backlighting.

Somebody mentioned LCDs cannot display pure black, this may or may not be true I dont know but the gradient supplied displays fine on my laptop. All the colours are distinguishable apart from the first & the last (lightest darkest) which look the same as the one beside it. Also tried looking at a photo of a black car & there are lots of shades of black so detail is defned.

ATI Radeon Mobility HD 5470 graphic card on Dell Inspiron N7010 Laptop display so probably an above average graphic card for a laptop. Setting it up correctly makes up for the deficencies in the display near enough so long as its viewed "head on"

That said the game is not graphic intensive it does nothing fancy & I think runs in 256 colours so even a basic on board graphics card & monitor should be able to display the game correctly if setup properly.

[Imp]

First appologies for multi post upon reading think you were wanting line not to be visible so hope this helps though it throws a spanner in the works.

Size makes a big diffrence to the visibility of the line.
The picture you provided I can see the line just as displayed on the web page thumbnail but very clearly if I view the full picture.

However

If I run my game setting magnifcation so flag is approximately the same size I cant see the line. Infact I cant see the line at all on any magnifcaton for unit flags but I can cleary see the line at any magnification on the victory flags.

Ths is probably due to the human eye & extra width of the stripe letting your eye defne it.

Guessing here but this says to me if anything my game is fractionaly darker than yours or at least the picture provided.
Perhaps also my graphic card & or monitor is better than yours allowing the line to stand out easily to the eye once it gets above a certain size/ width.
On the gradient provided a diffrence of 3 or more along is clearly visible. In otherwords on a casual (normal) look 3 adjacent colours would not be noticed but the next would.
Considering its 20+ shades away from black it therefore stands out easily