sqlx CLI help unreadable in light terminals

[faultymajority]

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Description

I have a white background in my terminal, and the choice of "white" in https://github.com/launchbadge/sqlx/blob/e8384f2a00173c2b120eea72e99d120557fced8b/sqlx-cli/src/opt.rs#L19 causes sqlx --help to be invisible.

I'm aware I can set NO_COLOR=1 to turn the help styles off, but it would be nice to be able to use help out of the box.

Reproduction steps

Type sqlx --help in a white terminal.

SQLx version

0.8.6

Enabled SQLx features

n/a

Database server and version

n/a

Operating system

Linux

Rust version

n/a

[mehcode]

We're not using RGB or true colors, we're using ANSI logical colors. Your terminal theme should not be configuring white to be the same as your background. This is how it looks in my terminal. It's not "great", it should probably be a darker color, but its readable.

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We should probably switch to using bright (\e1[m) rather than "white" though. This would fix this for you and make it have better contrast for me.

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We'd happily accept a PR for this.

[suiwenfeng]

Thanks for the guidance in the thread — I ran local comparisons on a light terminal background.

Root cause is the hardcoded literal style in sqlx-cli/src/opt.rs:
HELP_STYLES.literal(AnsiColor::White.on_default())

Current (baseline)

Option A (recommended): remove .literal(...) and use clap default literal styling

Option B (white + bold / bright-like)

I recommend Option A because:

1. It gives the best readability on light backgrounds in my tests.
2. It is the smallest/safest change (lets clap pick sane terminal defaults).
3. It avoids hardcoding a foreground color that can conflict with user themes.

If this direction looks good, I can open a PR with Option A.