solarized_dark: improve 256 color approximation

[mturquette]

Solarized colors for 256 color palettes are not as closely approximated
as they could be.

256_base0 is set to g66 in Urwid's 256 color palette. This corresponds
to #a8a8a8 in Xterm. base0 should ideally be #808080. This matches g50
exactly, so switch to that grayscale value.

256_base1 is set to g70 in Urwid's 256 color palette. This corresponds
to #b2b2b2 in Xterm. base1 should ideally be #8a8a8a. We can't get
this exactly with Urwid's 256 color palette, but #848484 is a closer
approximation. Switch to g52 to get this grayscale value.

256_cyan is set to #88 in Urwid's 256 color palette. This corresponds
to #008787 in Xterm. cyan should ideally be #00afaf. This matches #0aa
exactly, so switch to that value.

Signed-off-by: Michael Turquette mturquette@deferred.io

[pazz]

ah yes. I think i actually deliberately changed this value because somehow, #0aa looks not very solarized-like
in the bright theme and i wanted to use colours consistently.
But i have no strong feelings either way and will push this anyway. thanks.

[pazz]

ah yes. I think i actually deliberately changed this value because somehow, #0aa looks not very solarized-like
in the bright theme and i wanted to use colours consistently.
But i have no strong feelings either way and will push this anyway. thanks.