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// When color definition differs for dark and light variant,
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// it gets @if ed depending on $variant
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$higher_opacity: 0.9;
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$middle_opacity: 0.6;
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$lower_opacity: 0.3;
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$enabled_opacity: 0.75;
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$hint_opacity: 0.6;
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$disabled_opacity: 0.4;
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@function gtkalpha($c, $a) {
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@return unquote("alpha(#{$c}, #{$a})");
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}
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@function scale-alpha($c, $a) {
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@return scale-color($c, $alpha: percentage(-1 + $a));
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}
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// Reference URL:
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// https://material.google.com/style/color.html#color-color-palette
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// https://material.google.com/style/icons.html#icons-product-icons
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// Foreground colors
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$fg_color: if($variant == 'light', scale-alpha(#000000, 0.8), #FFFFFF);
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$secondary_fg_color: scale-alpha($fg_color, $enabled_opacity);
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$tertiary_fg_color: scale-alpha($fg_color, $hint_opacity);
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$selected_fg_color: #FFFFFF;
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$secondary_selected_fg_color: scale-alpha($selected_fg_color, $enabled_opacity);
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$tertiary_selected_fg_color: scale-alpha($selected_fg_color, $hint_opacity);
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$insensitive_fg_color: scale-alpha($fg_color, $disabled_opacity);
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$insensitive_secondary_fg_color: scale-alpha($secondary_fg_color, $disabled_opacity);
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$insensitive_tertiary_fg_color: scale-alpha($tertiary_fg_color, $disabled_opacity);
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$insensitive_selected_fg_color: scale-alpha($selected_fg_color, $disabled_opacity);
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$insensitive_secondary_selected_fg_color: scale-alpha($secondary_selected_fg_color, $disabled_opacity);
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$insensitive_tertiary_selected_fg_color: scale-alpha($tertiary_selected_fg_color, $disabled_opacity);
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// Background colors
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$bg_color: if($variant == 'light', #F5F5F5, #455A64);
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$base_color: if($variant == 'light', #FFFFFF, #546E7A);
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$secondary_base_color: mix($base_color, $bg_color, 50%);
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$light_color: if($variant =='light', #FAFAFA, #607D8B);
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$headerbar_color: if($variant =='light', #455A64, #37474F);
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$selected_bg_color: #42A5F5;
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$secondary_selected_bg_color: #40C4FF;
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$accent_bg_color: #FF4081;
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// Misc colors
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$track_color: gtkalpha(currentColor, $lower_opacity);
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$borders_color: if($variant == 'light', scale-alpha(#000000, 0.1), scale-alpha(#000000, 0.2));
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$highlight_color: if($variant == 'light', scale-alpha(#FFFFFF, 0.4), scale-alpha(#FFFFFF, 0.1));
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$secondary_highlight_color: scale-alpha(#FFFFFF, 0.2);
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$link_color: $selected_bg_color;
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$link_visited_color: #E040FB;
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$warning_color: #FF6D00;
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$error_color: #DD2C00;
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$success_color: #00C853;
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$suggested_color: $accent_bg_color;
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$destructive_color: #FF5252;
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$info_bg_color: #66BB6A;
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$question_bg_color: #42A5F5;
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$warning_bg_color: #FFA726;
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$error_bg_color: #EF5350;
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