Fine-tuned letter pairs and progress bar rendering.

[GaSkia]

Hi folks,
I'm trying to change the fonts to my kitty terminal but I'm not able to change the progress bar and to enable the fine-tuned letter pairs.

I'm on arch linux and this is my kitty.conf

font_family         Fira Code
bold_font           auto
italic_font         auto
bold_italic-font    auto

font_size 11

symbol_map U+EE00-U+EE0B,U+E0A0-U+E0A3,U+E0C0-U+E0C7 Fira Code
narrow_symbol U+EE00-U+EE0B,U+E0A0-U+E0A3,U+E0C0-U+E0C7  Fira Code
disable_ligatures never 
text_compositor_strategy platform