Capitalization Purple Colored Zag unseeable on dark mode

I use dark mode on everything that supports it. I am using Obsidian and just installed Harper (thank you for this resource!) and in dark mode the Purple Zig Zag used to underline a miss-Capitalized word is too dark to even see.

I would like to suggest that this purple colour be modified so it works on light and dark mode.

Thank you for reading and considering.

Michael

Reproduce the purple zigzag underline in Harper through Obsidian's dark mode, then trace where that spelling-warning color is defined. Adjust the color so the underline is clearly visible in both light and dark modes, and verify the capitalization warning in each theme.

Written by the indexing model from the issue text.