monokai-shade theme

A Monokai syntax theme variant with some subtle, relaxing tweaks

Based on the original Atom Monokai theme - https://github.com/kevinsawicki/monokai

Tweaks

• increased line-height
• changed default font
• subtle, low-contrast invisible characters
• toned down wrap-guide
• changed bg color to match Monokai from Sublime
• more padding in line number gutter
• brighter highlighting