Here is another dark mode extension for firefox.
https://addons.mozilla.org/en-US/firefox/addon/dark-mode-global/
I just installed it, and I'll be kicking the tires over the next few days.
My first impression is quite favourable — primarily because it doesn't suffer from the huge performance hit that the previous one did. (see https://forums.pokerstrategy.com/forum/thread.php?postid=3374167#post3374167)
Let us know how it works for you.
If you use the dark mode add-on, turn it on and off to see how text colours look
The standard 5 PokerStrategy.com colours are at the top.
Following that are the standard named HTML colours.
Some will be nearly invisible in one rendering or the other.
Just drag the mouse over the invisible ones.
The numbers are hex codes, and can be used in forum posts like so:
[b][color=8A2BE2][size=32]BlueViolet (8A2BE2)[/size][/color][/b]
Invisible Text Normal (f2f2f2) Invisible normal
Invisible Text Dark (202020) Invisible dark
Interesting that the dark mode switch switches the invisible normal to the correct invisible dark
PS Red (Red)
PS Blue (Blue)
PS Orange (Orange)
PS Purple (Purple)
PS Green (Green)
AliceBlue (F0F8FF)
AntiqueWhite (FAEBD7)
Aqua (00FFFF)
Aquamarine (7FFFD4)
Azure (F0FFFF)
Beige (F5F5DC)
Bisque (FFE4C4)
Black (000000)
BlanchedAlmond (FFEBCD)
Blue (0000FF)
BlueViolet (8A2BE2)
Brown (A52A2A)
BurlyWood (DEB887)
CadetBlue (5F9EA0)
Chartreuse (7FFF00)
Chocolate (D2691E)
Coral (FF7F50)
CornflowerBlue (6495ED)
Cornsilk (FFF8DC)
Crimson (DC143C)
Cyan (00FFFF)
DarkBlue (00008B)
DarkCyan (008B8B)
DarkGoldenRod (B8860B)
DarkGray (A9A9A9)
DarkGrey (A9A9A9)
DarkGreen (006400)
DarkKhaki (BDB76B)
DarkMagenta (8B008B)
DarkOliveGreen (556B2F)
DarkOrange (FF8C00)
DarkOrchid (9932CC)
DarkRed (8B0000)
DarkSalmon (E9967A)
DarkSeaGreen (8FBC8F)
DarkSlateBlue (483D8B)
DarkSlateGray (2F4F4F)
DarkSlateGrey (2F4F4F)
DarkTurquoise (00CED1)
DarkViolet (9400D3)
DeepPink (FF1493)
DeepSkyBlue (00BFFF)
DimGray (696969)
DimGrey (696969)
DodgerBlue (1E90FF)
FireBrick (B22222)
FloralWhite (FFFAF0)
ForestGreen (228B22)
Fuchsia (FF00FF)
Gainsboro (DCDCDC)
GhostWhite (F8F8FF)
Gold (FFD700)
GoldenRod (DAA520)
Gray (808080)
Grey (808080)
Green (008000)
GreenYellow (ADFF2F)
HoneyDew (F0FFF0)
HotPink (FF69B4)
IndianRed (CD5C5C)
Indigo (4B0082)
Ivory (FFFFF0)
Khaki (F0E68C)
Lavender (E6E6FA)
LavenderBlush (FFF0F5)
LawnGreen (7CFC00)
LemonChiffon (FFFACD)
LightBlue (ADD8E6)
LightCoral (F08080)
LightCyan (E0FFFF)
LightGoldenRodYellow (FAFAD2)
LightGray (D3D3D3)
LightGrey (D3D3D3)
LightGreen (90EE90)
LightPink (FFB6C1)
LightSalmon (FFA07A)
LightSeaGreen (20B2AA)
LightSkyBlue (87CEFA)
LightSlateGray (778899)
LightSlateGrey (778899)
LightSteelBlue (B0C4DE)
LightYellow (FFFFE0)
Lime (00FF00)
LimeGreen (32CD32)
Linen (FAF0E6)
Magenta (FF00FF)
Maroon (800000)
MediumAquaMarine (66CDAA)
MediumBlue (0000CD)
MediumOrchid (BA55D3)
MediumPurple (9370DB)
MediumSeaGreen (3CB371)
MediumSlateBlue (7B68EE)
MediumSpringGreen (00FA9A)
MediumTurquoise (48D1CC)
MediumVioletRed (C71585)
MidnightBlue (191970)
MintCream (F5FFFA)
MistyRose (FFE4E1)
Moccasin (FFE4B5)
NavajoWhite (FFDEAD)
Navy (000080)
OldLace (FDF5E6)
Olive (808000)
OliveDrab (6B8E23)
Orange (FFA500)
OrangeRed (FF4500)
Orchid (DA70D6)
PaleGoldenRod (EEE8AA)
PaleGreen (98FB98)
PaleTurquoise (AFEEEE)
PaleVioletRed (DB7093)
PapayaWhip (FFEFD5)
PeachPuff (FFDAB9)
Peru (CD853F)
Pink (FFC0CB)
Plum (DDA0DD)
PowderBlue (B0E0E6)
Purple (800080)
RebeccaPurple (663399)
Red (FF0000)
RosyBrown (BC8F8F)
RoyalBlue (4169E1)
SaddleBrown (8B4513)
Salmon (FA8072)
SandyBrown (F4A460)
SeaGreen (2E8B57)
SeaShell (FFF5EE)
Sienna (A0522D)
Silver (C0C0C0)
SkyBlue (87CEEB)
SlateBlue (6A5ACD)
SlateGray (708090)
SlateGrey (708090)
Snow (FFFAFA)
SpringGreen (00FF7F)
SteelBlue (4682B4)
Tan (D2B48C)
Teal (008080)
Thistle (D8BFD8)
Tomato (FF6347)
Turquoise (40E0D0)
Violet (EE82EE)
Wheat (F5DEB3)
White (FFFFFF)
WhiteSmoke (F5F5F5)
Yellow (FFFF00)
YellowGreen (9ACD32)
Originally posted by manar26216
What is this?
Hi manar26216,
Welcome to PokerStrategy.com 
The previous post was a test I did to see how colours looked using the dark mode add-on mentioned in the first post of this thread.
If you're referring to something else, please be more specific.
All the best,
VS