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// When color definition differs for dark and light variant,
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// it gets @if ed depending on $variant
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@import 'color-palette';
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@function gtkalpha($c, $a) {
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@return unquote("alpha(#{$c}, #{$a})");
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}
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@function on($color, $state: 'primary') {
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// Calculate color brightness according to https://www.w3.org/TR/AERT/#color-contrast
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$brightness: (red($color) * 299 + green($color) * 587 + blue($color) * 114) / 1000;
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@if ($brightness >= 128) {
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@if ($state == 'primary') { @return rgba(black, 0.87); }
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@if ($state == 'secondary') { @return rgba(black, 0.54); }
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@if ($state == 'disabled') { @return rgba(black, 0.38); }
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@if ($state == 'secondary-disabled') { @return rgba(black, 0.26); }
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@if ($state == 'track') { @return rgba(black, 0.26); }
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@if ($state == 'divider') { @return rgba(black, 0.12); }
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@if ($state == 'fill') { @return rgba(black, 0.04); }
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} @else {
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@if ($state == 'primary') { @return white; }
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@if ($state == 'secondary') { @return rgba(white, 0.7); }
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@if ($state == 'disabled') { @return rgba(white, 0.5); }
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@if ($state == 'secondary-disabled') { @return rgba(white, 0.3); }
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@if ($state == 'track') { @return rgba(white, 0.3); }
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@if ($state == 'divider') { @return rgba(white, 0.12); }
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@if ($state == 'fill') { @return rgba(white, 0.04); }
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}
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}
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@function highlight($color) {
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@if (lightness($color) > 80%) { @return rgba(white, 0.4); }
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@else if (lightness($color) > 40%) { @return rgba(white, 0.2); }
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@else { @return rgba(white, 0.1); }
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}
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//
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// Basic colors
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//
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$blue: %TERMINAL_COLOR12%;
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$green: %TERMINAL_COLOR10%;
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$yellow: %TERMINAL_COLOR11%;
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$red: %TERMINAL_COLOR9%;
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$primary: %SEL_BG%;
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$primary-alt: %SEL_BG2%;
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$background: %BG%;
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$surface: %MATERIA_SURFACE%;
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$base: %MATERIA_VIEW%;
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$base-alt: %INACTIVE_MATERIA_VIEW%;
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$os-background: %HDR_BG3%;
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$tooltip: rgba(%HDR_BG%, 0.9);
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$scrim: rgba(black, %MATERIA_PANEL_OPACITY%);
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$scrim-alt: rgba(black, 0.3);
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$scrim-inverse: rgba(white, 0.1);
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$titlebar: %HDR_BG%;
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$panel: if($titlebar == 'dark', %HDR_BG3%, $scrim);
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$panel-solid: %HDR_BG3%; // for Unity panel which doesn't allow translucent colors
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//
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// Misc colors
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//
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$link: $primary;
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$link-visited: %TERMINAL_COLOR5%;
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$warning: %TERMINAL_COLOR11%;
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$error: %TERMINAL_COLOR9%;
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$success: %TERMINAL_COLOR10%;
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$suggested: $primary;
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$destructive: $error;
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$infobar-info: %TERMINAL_COLOR10%;
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$infobar-question: %TERMINAL_COLOR12%;
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$infobar-warning: $warning;
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$infobar-error: $error;
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$border: if($variant == 'light', rgba(black, 0.12), rgba(black, 0.26));
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$border-alt: rgba(black, 0.26); // darker border color for Chrome and Firefox
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$titlebar-indicator: if($topbar == 'dark', currentColor, $primary);
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//
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// Overlay state colors
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//
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$overlay-hover: gtkalpha(currentColor, 0.08);
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$overlay-focus: gtkalpha(currentColor, 0.12);
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$overlay-focus-hover: gtkalpha(currentColor, 0.16);
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$overlay-active: gtkalpha(currentColor, 0.12);
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$overlay-checked: gtkalpha(currentColor, 0.24);
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$overlay-selected: rgba($primary, %MATERIA_SELECTION_OPACITY%);
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//
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// Text and derivative colors
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//
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$text: %FG%;
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$text-secondary: rgba(%FG%, 0.7);
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$text-disabled: rgba(%FG%, 0.5);
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$text-secondary-disabled: rgba(%FG%, 0.3);
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$track: rgba(%FG%, 0.3);
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$divider: rgba(%FG%, 0.12);
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$fill: rgba(%FG%, 0.04);
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$titlebar-text: %HDR_FG%;
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$titlebar-text-secondary: rgba(%HDR_FG%, 0.7);
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$titlebar-text-disabled: rgba(%HDR_FG%, 0.5);
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$titlebar-text-secondary-disabled: rgba(%HDR_FG%, 0.3);
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$titlebar-track: rgba(%HDR_FG%, 0.3);
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$titlebar-divider: rgba(%HDR_FG%, 0.12);
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$titlebar-fill: rgba(%HDR_FG%, 0.04);
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// workaround for Electron menu which doesn't allow translucent colors
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$solid-text: %FG%;
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$solid-text-secondary: mix(%FG%, $surface, percentage(0.7));
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$solid-text-disabled: mix(%FG%, $surface, percentage(0.5));
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$solid-divider: mix(%FG%, $surface, percentage(0.12));
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// workaround for GTK3 @placeholder_text_color which doesn't allow translucent colors
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$placeholder_text_color: mix(%FG%, $base, percentage(0.7));
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