Fix theme secondary background colors to official values; add Thankful Eyes
Dracula: secondaryBackground #383a59 → #44475a (official Selection color, draculatheme.com)
One Dark: secondaryBackground #2c313c → #21252b (official sideBar.background, vscode-one-dark-pro)
Monokai: secondaryBackground #3e3d32 → #49483e (official line highlight, textmate/monokai.tmbundle)
Add Thankful Eyes theme: high-contrast dark teal theme for accessibility
designed for color blindness and visual impairments (tanrax/thankful-eyes-theme.el).
Colors taken directly from the .el source: bg #122b3b, hl-line #1c2f3b,
fg #faf6e4, comment #6c8b9f, accent (function) #a8e1fe, selection #4e5d62.
andros
689d1c1d63