JLEA I found the shemes folder and inside it I have Pioneer blue day, Pioneer blue night, Pioneer red day, Pioneer red night.
This is the content of the Pioneer blue day color.ini file that was zipped in it:
[iNFO]
name="COLORSCHEME~Pioneer Blue Day"
night=0
;=====================================
; Roads
; key = ,,,
;=====================================
;a = "0_int", 255, 128, 0 ;class 0 external color
;A = "0_ext", 255, 0, 0 ;class 0 external color
a = "0_int",56,56,224 ;class 0 external color
A = "0_ext",8,8,200 ;class 0 external color
;s = "freeway_int", 255, 200, 0
;S = "freeway_ext", 255, 100, 0
;s = "freeway_int", 128,128,232
s = "freeway_int", 112,112,232
S = "freeway_ext", 0,0,200
;b = "1_int",255, 200, 0 ;class 1 internal color
;B = "1_ext",128, 100, 0 ;class 1 external color
b = "1_int",24,144,88 ;class 1 internal color (autout)
B = "1_ext",16,104,64 ;class 1 external color
;c = "2_int", 255,230, 0
;C = "2_ext", 128, 0, 0
c = "2_int",24,144,88
C = "2_ext",16,104,64
;d = "4_int", 255,230,0
;D = "4_ext", 180,180,0
d = "4_int",224,144,56
D = "4_ext",224,120,8
;e = "9_int",255,255,128
;E = "9_ext",128,128,50
e = "9_int",200,200,40
E = "9_ext",160,160, 0
;f = "8_int",255,255,128
;F = "8_ext",128,128,50
f = "8_int",200,200,40
F = "8_ext",160,160, 0
;g = "10_int",255,255,100
;G = "10_ext",128,128,50
g = "10_int",144,144,144
G = "10_ext",160,160,160
;h = "12_int",255,255,255
;H = "12_ext",128,128,128
h = "12_int",136,136,136
H = "12_ext",152,152,152
;i = "13_int",255,255,255
;I = "13_ext",200,200,200
i = "13_int",112,112,112
I = "13_ext",128,128,128
;=====================================
; Wires (no fill)
;=====================================
;T = "1w",255,127,0
T = "1w",8,120,32
;L = "4w",255,150,0 ; 2_ext far view
L = "4w",240,104,24
;M = "8w",255,255,100 ; 9_ext far view
M = "8w",160,160,0
;N = "9w",128,128,50
N = "9w",160,160,0
;O = "10w",120,120,120
O = "10w",112,112,112
;P = "12w",120,120,120
P = "12w",136,136,136
;Q = "13w",170,170,170
Q = "13w",112,112,112
;=====================================
; Only for debugging
;=====================================
;R = "fable", 255, 0, 0
;r = "fable", 127, 0, 0
R = "fable", 255, 0, 0
r = "fable", 127, 0, 0
;Y = "fable", 255, 255, 0
;y = "fable", 127, 127, 0
Y = "fable", 255, 255, 0
y = "fable", 127, 127, 0
;=====================================
; Other Roads
;=====================================
;u = "unpaved", 121, 78, 0
;U = "unpaved_ext",74,74,74
u = "unpaved", 112,112,112
U = "unpaved_ext",128,128,128
;v = "poor", 215, 209, 160
;V = "poor_ext",74,74,74
v = "poor", 104,64,168
V = "poor_ext",128,128,128
;z = "ped", 255,255,128
;Z = "ped_ext",222,222,222
z = "ped", 240,8,152
Z = "ped_ext",128,128,128
;x = "ferry", 114, 114, 177
;X = "ferry_ext",0,0,114
x = "ferry", 8,104,184
X = "ferry_ext",128,224,248
;w = "train_ferry", 140, 87, 35
;W = "train_ferry_ext",100,62,25
w = "train_ferry", 140, 87, 35
W = "train_ferry_ext",100,62,25
;=====================================
; Shape colors
;
; =,,,,
; - obsolete (use -1 or keep the original value)
; - describes how the polygon is shaded based on the terrain , values are
; 0 (default) ?the polygon is filled with the defined RGB , and blended with the shade calulated from the terrain
; 1 ?the defined RGB is ignored, the polygon area will be filled with the color defined by the elevation and shaded by the elevation too
; 2 ?no shading, the pixels in the polygon will always be the defined RGB
;
;=====================================
;0 = "ground", 215, 230, 205,1
0 = "ground",176,176,200
;=====================================
;Built Up Areas
;=====================================
;Partition_area = 9, 200, 200, 200, 1 ;ua kene mint a "ground"
;built_up = 8, 200, 200, 200, 0
;built_up_border = 1, 100, 100, 100
Partition_area = 9,176,176,200 ;ua kene mint a "ground"
built_up = 8, 176,184,136
built_up_border = 1, 160,168,120
;=====================================
;Water elements
;=====================================
;sweet_water = 6, 129,169,222,2
;salt_water = 6, 129,169,222,2
;intermittent_water = 6, 129,169,222,2
;;salt_water = 6, 166,202,240
;;intermittent_water = 6, 166,202,240
sweet_water = 6, 80,152,240
salt_water = 6, 80,152,240
intermittent_water = 6, 80,152,240
;-------------------------------------
;Wetland: Wetland or swamp area
;-------------------------------------
;wetland = 6, 176,255,176
wetland = 6, 176,255,176
;-------------------------------------
;Park
;-------------------------------------
;city_park = 4, 166,203,148,1
;state_forest = 3, 147,191,125,1
;National_Park = 3, 189,216,176,1
;;National_Park_border = 1, 89, 185, 86
city_park = 4, 166,203,148
state_forest = 3, 128,176,88
National_Park = 3, 189,216,176
;National_Park_border = 1, 89, 185, 86
;-------------------------------------
;Forest
;-------------------------------------
;city_forest = 1, 255,0,255,1
city_forest = 1, 128,176,88
;-------------------------------------
;Artificial Surface
;-------------------------------------
;airport_ground = 4, 204,204,204
;airport_runway = 2, 240,240,240,2
;;building = 0, 209,143,128
;building = 0, 198,125,115,2
;cemetery_ground = 5, 146,224,139
;industrial_area = 2, 190,190,190
airport_ground = 7, 160,152,104
airport_runway = 2, 152,160,184
building = 0, 240,176,104
cemetery_ground = 4, 128,176,88
industrial_area = 5, 200,200,192
;=====================================
;Line shapes
;=====================================
;railway = 2, 0,0,0, 255,255,255;
;
;;international_border = -1, 240,220,200
;international_border = -1, 0,0,0
railway = 2, 80,80,80
international_border = -1, 0,0,0
;=====================================
; Label Colors
;=====================================
label_road = "", 0,0,0
label_roadlt = "", 90,90,90
label_settlements = "", 0,0,0
;oneway_arrow = "",112,112,204
oneway_arrow = "",64,96,204
oneway_arrow_ext = "",0,0,0
alpha_arrow = 5
;planned_road = "",0,255,0
;planned_road_ext = "",255,255,255
;planned_road = "",104,240,104
;planned_road_ext = "",64,184,64
planned_road = "",64,240,64
planned_road_ext = "",64,184,64
;planned_road_visited = "",200,72,26
;planned_road_visited_ext = "",100,36,13
planned_road_visited = "",32,104,32
planned_road_visited_ext = "",8,96,8
;planned_road_future = "",208,64,9
;planned_road_future_ext = "",120,45,16
planned_road_future = "",32,200,240
planned_road_future_ext = "",32,152,240
;planned_road_prohibited = "",128,0,128
;planned_road_prohibited_ext = "",64,0,64
planned_road_prohibited = "",160,88,240
planned_road_prohibited_ext = "",120,48,208
;planned_road_inactive = "",164,164,164
;planned_road_inactive_ext = "",92,92,92
planned_road_inactive = "",164,164,164
planned_road_inactive_ext = "",92,92,92
;blocked_road = "", 32,32,240
;blocked_road_ext = "", 32,32,240
blocked_road = "", 156,27,0
blocked_road_ext = "", 255,209,0
;=====================================
; System colors
;=====================================
zoomcolor1 = 0, 60,80,150
zoomcolor2 = 0, 255,255,255
zoomcolorfont = 0,255,255,255
zoomcolorglow = 0,0,0,0
tahoma="tahoma"
tahomabd="tahomabd"
[icon]
poi="gfx/day/poi6x6.spr"
poi2="gfx/day/poi26x26.spr"
poi2tc="gfx/poi26x26tc.spr"
settlements="gfx/telepules.spr"
trackinglist="$skin$/common/trackinglist.spr"
flags="$skin$/common/small_flags.spr"
pins="$skin$/common/pins.spr"
gpspos="$skin$/common/carpos.spr"
cursor="$skin$/common/cursor.spr"
cursor_places="$skin$/common/cursor_places.spr"
car="$skin$/common/daycar.spr"
carghost="$skin$/common/daycarghost.spr"
guidancearrow="$skin$/common/dayguidancearrow.spr"
[other]
texture="gfx/day/texture.spr"
sun="gfx/day/sun.spr"
sky="gfx/day/sky.spr"
heightcolormap="$skin$/common/dayheightcolormap.bmp"
[userpoi]
font="tahoma"
fontsize=10
color=0,0,0
[track]
; params: x =
; x: 1-n (0 is reserved for the not visible track type)
1 = 200,0,0,255,255,255
2 = 255,85,0,235,65,0
3 = 0,255,128,0,235,108
4 = 255,0,0,235,0,0
5 = 0,213,255,0,193,235
6 = 0,0,255,0,0,235
7 = 128,0,255,108,0,235
8 = 0,255,0,0,235,0
9 = 255,255,128,235,235,108
10 = 255,198,0,235,168,0
Could you please point out to me which values I should change to make it black for example? I wouldnt have a clue where to even start on that 

Also do I have to change all Pioneer blue day, Pioneer blue night, Pioneer red day, Pioneer red night?
Cheers and sorry for being a pain 