Add recommendations for light terminal themes

[k4j8]

Update the README to suggest a color configuration for light terminals themes. With the current default settings, the white text is not legible on most light terminal themes.

[zlatanvasovic]

why not black though?

[k4j8]

Good point. Although black wasn't an option, "grey dark" was. I tried the following code on all default light themes in Gnome Terminal and like it more. What do you think? If acceptable, I will modify and resubmit.

export TLDR_COLOR_BLANK="grey dark"
export TLDR_COLOR_NAME="grey dark"
export TLDR_COLOR_DESCRIPTION="grey dark"
export TLDR_COLOR_EXAMPLE="blue"     
export TLDR_COLOR_COMMAND="red"
export TLDR_COLOR_PARAMETER="grey dark"

Black on light yellow

Black on white

Tango light

Solarized light

Current defaults (bad) - black on white

[zlatanvasovic]

As far as I know, black is supported in Bash. Dark grey is fine too, anyway.

[MasterOdin]

As far as I know, black is supported in Bash. Dark grey is fine too, anyway.

This is a quirk of termcolor where it uses the name grey instead of black to represent ANSI code 30.

[zlatanvasovic]

@KyleWJohnston Please review #95 and tell me does it solve some of your concerns.

[k4j8]

#96 implements improvements to light terminals that require different user modifications if any at all, making this PR unnecessary.