yaru.css/scss/_colors.scss

// When col def diffs for dark and light variant
// it gets @if ed depending on $variant

$variant: 'light';

@import 'palette';

$base_color: if($variant == 'light', #ffffff, lighten($jet, 6%));
$text_color: if($variant == 'light', black, white);
$bg_color: if($variant == 'light', #FAFAFA, lighten($jet, 8%));
$fg_color: if($variant == 'light', $inkstone, $porcelain);

$selected_fg_color: $accent_fg_color;
$selected_bg_color: $accent_bg_color;
$selected_borders_color: if($variant== 'light', darken($selected_bg_color, 15%), darken($selected_bg_color, 30%));
$selected_text_bg_color: if($variant == 'light', transparentize($selected_bg_color, 0.7), transparentize($selected_bg_color, 0.2));
$borders_color: if($variant == 'light', darken($bg_color, 18%), darken($bg_color, 10%));
$alt_borders_color: if($variant == 'light', darken($bg_color, 24%), darken($bg_color, 18%));
$borders_edge: if($variant == 'light', transparentize(white, 0.2), transparentize($fg_color, 0.93));
$link_color: if($variant == 'light', darken($selected_bg_color, 10%), lighten($selected_bg_color, 20%));
$link_visited_color: if($variant == 'light', darken($selected_bg_color, 20%), lighten($selected_bg_color, 10%));
$top_hilight: $borders_edge;
$dark_fill: mix($borders_color, $bg_color, 50%);
$headerbar_bg_color: if($variant == 'light', lighten($bg_color, 5%), darken($bg_color, 3%));
$menu_color: if($variant == 'light', $bg_color, lighten($jet, 2%));
$menu_selected_color: if($variant =='light', darken($bg_color, 6%), lighten($bg_color, 6%)); // Yaru change: use lighter color in dark theme (mimic Libadwaita)

$scrollbar_bg_color: if($variant == 'light', mix($bg_color, $fg_color, 80%), mix($base_color, $bg_color, 50%));
$scrollbar_slider_color: mix($fg_color, $bg_color, 60%);
$scrollbar_slider_hover_color: mix($fg_color, $bg_color, 80%);
$scrollbar_slider_active_color: if($variant=='light', darken($selected_bg_color, 10%), lighten($selected_bg_color, 10%));

$warning_color: $yellow;
$error_color: $red;
$success_color: lighten($green, 5%);
$destructive_color: if($variant == 'light', $red, darken($red, 10%));

$osd_fg_color: #eeeeec;
$osd_text_color: white;
$osd_bg_color: transparentize(lighten($jet, 2%),0.025);
$osd_insensitive_bg_color: transparentize(mix($osd_fg_color, opacify($osd_bg_color, 1), 10%), 0.5);
$osd_insensitive_fg_color: mix($osd_fg_color, opacify($osd_bg_color, 1), 50%);
$osd_borders_color: transparentize(black, 0.3);

$sidebar_bg_color: mix($bg_color, $base_color, 50%);

$tooltip_borders_color: transparentize(white, 0.9);
$shadow_color: transparentize(black, 0.9);

$drop_target_color: $success_color;

//insensitive state derived colors
$insensitive_fg_color: mix($fg_color, $bg_color, 50%);
$insensitive_bg_color: mix($bg_color, $base_color, 60%);
$insensitive_borders_color: $borders_color;

//colors for the backdrop state, derived from the main colors.
$backdrop_base_color: if($variant == 'light', darken($base_color, 1%), lighten($base_color, 3%));
$backdrop_text_color: if($variant == 'light', transparentize($text_color, 0.31), transparentize(white, 0.45));
$backdrop_bg_color: if($variant == 'light', $bg_color, lighten($bg_color, 3%));
$backdrop_fg_color: if($variant == 'light', mix($fg_color, $backdrop_bg_color, 80%), transparentize(white, 0.35));
$backdrop_insensitive_color: if($variant == 'light', darken($backdrop_bg_color, 15%), lighten($backdrop_bg_color, 15%));
$backdrop_selected_fg_color: if($variant == 'light', $backdrop_base_color, $backdrop_text_color);
$backdrop_selected_bg_color: transparentize(desaturate($selected_bg_color,100%),0.5);
$backdrop_borders_color: mix($borders_color, $bg_color, 80%);
$backdrop_dark_fill: mix($backdrop_borders_color, $backdrop_bg_color, 35%);

//special cased widget colors
$suggested_bg_color: if($accent_bg_color == $orange, if($variant == 'light', lighten($green, 5%), darken($green, 5%)), $accent_bg_color);
$suggested_border_color: if($variant=='light', darken($suggested_bg_color, 5%), darken($suggested_bg_color, 10%));
$progress_bg_color: if($variant== 'light', lighten($accent_bg_color, 10%), lighten($accent_bg_color, 5%));
$progress_border_color: $progress_bg_color;
$checkradio_bg_color: if($variant=='light', lighten($accent_bg_color, 5%), $accent_bg_color);
$checkradio_fg_color: $accent_fg_color;
$checkradio_borders_color: if($variant == 'light', darken($checkradio_bg_color, 10%), darken($checkradio_bg_color, 40%));
$switch_bg_color: $selected_bg_color;
$switch_borders_color: if($variant == 'light', darken($checkradio_bg_color, 10%), darken($checkradio_bg_color,40%));
$focus_border_color: transparentize(lighten($accent_bg_color, 14%), 0.3);
$alt_focus_border_color: if($variant == 'light', transparentize(white, 0.2), transparentize(white,0.7));
$dim_label_opacity: 0.55;