Updating dark mode colors

After getting some feedback, I darkened the dark mode grays some, making the dark border color have less contrast. I also made sure that the grays all share the same hue, and fixed some of their brightnesses.

Light palette

• Tweaks a few gray values to have a standard hue (215)
• Text is now gray 1000
• Button secondary foreground is now gray 1000
• Button tertiary foreground is now gray 000
• Button tertiary background is now gray 1000
• Button transparent foreground is now gray 1000

Dark palette

• Updates all the grays. Most of them are slightly darker.
• Black is now gray 000
• Background overlay is now gray 200
• Button tertiary background is now gray 500
• Button tertiary foreground is now gray 1000
• Button secondary foreground is now gray 800
• Icon default is now gray 700
• Status default is now gray 500
• Text secondary is now gray 700
• Code before is now gray 500

Screenshots

Before

After