Add Libadwaita theme for GTK3

dotfiles/.local/share/themes/adw-gtk3-dark/gtk-3.0/assets/bullet-symbolic.svg

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+<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline"><path d="M388 342c-2.207 0-4 1.793-4 4s1.793 4 4 4c2.208 0 4-1.793 4-4s-1.792-4-4-4z" style="color:#bebebe;font-style:normal;font-variant:normal;font-weight:400;font-stretch:normal;font-size:medium;line-height:normal;font-family:'Andale Mono';text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;letter-spacing:normal;word-spacing:normal;text-transform:none;direction:ltr;text-anchor:start;display:inline;overflow:visible;visibility:visible;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:2.389;marker:none" transform="translate(-381 -339)"/></g></svg>

dotfiles/.local/share/themes/adw-gtk3-dark/gtk-3.0/assets/check-symbolic.svg

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+<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline;opacity:1"><path style="color:#000;display:inline;fill:#bebebe;fill-opacity:1;stroke-linecap:round;-inkscape-stroke:none" d="M414.145 341.9a1.25 1.25 0 0 0-1.766.092l-5.68 6.305-2.881-2.909a1.25 1.25 0 0 0-1.766 1.77l4.743 4.768 7.442-8.262a1.25 1.25 0 0 0-.092-1.764z" transform="translate(-401 -339)"/></g></svg>

dotfiles/.local/share/themes/adw-gtk3-dark/gtk-3.0/assets/dash-symbolic.svg

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+<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline"><path style="color:#000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000;solid-opacity:1;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:4;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate" d="M407 367h8c1.108 0 2 .892 2 2s-.892 2-2 2h-8c-1.108 0-2-.892-2-2s.892-2 2-2z" transform="translate(-404 -362)"/></g></svg>

dotfiles/.local/share/themes/adw-gtk3-dark/gtk-3.0/libadwaita-tweaks.css

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+/*
+  This file will fix some legacy widget styles that aren't styled in libadwaita
+*/
+
+/* add a bg color to notebook headers */
+notebook > header {
+  background-color: @headerbar_bg_color;
+  border-color: mix(currentColor,@window_bg_color,0.85);
+}

dotfiles/.local/share/themes/adw-gtk3-dark/gtk-4.0/gtk-dark.css

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+/* GTK NAMED COLORS ---------------- use responsibly! */
+@define-color accent_bg_color @blue_3;
+@define-color accent_fg_color white;
+@define-color accent_color #78aeed;
+@define-color destructive_bg_color @red_4;
+@define-color destructive_fg_color white;
+@define-color destructive_color #ff7b63;
+@define-color success_bg_color @green_5;
+@define-color success_fg_color white;
+@define-color success_color @green_1;
+@define-color warning_bg_color #cd9309;
+@define-color warning_fg_color rgba(0, 0, 0, 0.8);
+@define-color warning_color @yellow_2;
+@define-color error_bg_color @red_4;
+@define-color error_fg_color white;
+@define-color error_color #ff7b63;
+@define-color window_bg_color #242424;
+@define-color window_fg_color white;
+@define-color view_bg_color #1e1e1e;
+@define-color view_fg_color white;
+@define-color headerbar_bg_color #303030;
+@define-color headerbar_fg_color white;
+@define-color headerbar_border_color white;
+@define-color headerbar_backdrop_color @window_bg_color;
+@define-color headerbar_shade_color rgba(0, 0, 0, 0.36);
+@define-color headerbar_darker_shade_color rgba(0, 0, 0, 0.9);
+@define-color sidebar_bg_color #303030;
+@define-color sidebar_fg_color white;
+@define-color sidebar_backdrop_color #2a2a2a;
+@define-color sidebar_shade_color rgba(0, 0, 0, 0.25);
+@define-color sidebar_border_color rgba(0, 0, 0, 0.36);
+@define-color secondary_sidebar_bg_color #2a2a2a;
+@define-color secondary_sidebar_fg_color white;
+@define-color secondary_sidebar_backdrop_color #272727;
+@define-color secondary_sidebar_shade_color rgba(0, 0, 0, 0.25);
+@define-color secondary_sidebar_border_color rgba(0, 0, 0, 0.36);
+@define-color card_bg_color rgba(255, 255, 255, 0.08);
+@define-color card_fg_color white;
+@define-color card_shade_color rgba(0, 0, 0, 0.36);
+@define-color dialog_bg_color #383838;
+@define-color dialog_fg_color white;
+@define-color popover_bg_color #383838;
+@define-color popover_fg_color white;
+@define-color popover_shade_color rgba(0, 0, 0, 0.25);
+@define-color thumbnail_bg_color #383838;
+@define-color thumbnail_fg_color white;
+@define-color shade_color rgba(0, 0, 0, 0.25);
+@define-color scrollbar_outline_color rgba(0, 0, 0, 0.5);
+@import '../gtk-3.0/libadwaita.css';
+@import '../gtk-3.0/libadwaita-tweaks.css';

dotfiles/.local/share/themes/adw-gtk3-dark/gtk-4.0/gtk.css

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+/* GTK NAMED COLORS ---------------- use responsibly! */
+@define-color accent_bg_color @blue_3;
+@define-color accent_fg_color white;
+@define-color accent_color #78aeed;
+@define-color destructive_bg_color @red_4;
+@define-color destructive_fg_color white;
+@define-color destructive_color #ff7b63;
+@define-color success_bg_color @green_5;
+@define-color success_fg_color white;
+@define-color success_color @green_1;
+@define-color warning_bg_color #cd9309;
+@define-color warning_fg_color rgba(0, 0, 0, 0.8);
+@define-color warning_color @yellow_2;
+@define-color error_bg_color @red_4;
+@define-color error_fg_color white;
+@define-color error_color #ff7b63;
+@define-color window_bg_color #242424;
+@define-color window_fg_color white;
+@define-color view_bg_color #1e1e1e;
+@define-color view_fg_color white;
+@define-color headerbar_bg_color #303030;
+@define-color headerbar_fg_color white;
+@define-color headerbar_border_color white;
+@define-color headerbar_backdrop_color @window_bg_color;
+@define-color headerbar_shade_color rgba(0, 0, 0, 0.36);
+@define-color headerbar_darker_shade_color rgba(0, 0, 0, 0.9);
+@define-color sidebar_bg_color #303030;
+@define-color sidebar_fg_color white;
+@define-color sidebar_backdrop_color #2a2a2a;
+@define-color sidebar_shade_color rgba(0, 0, 0, 0.25);
+@define-color sidebar_border_color rgba(0, 0, 0, 0.36);
+@define-color secondary_sidebar_bg_color #2a2a2a;
+@define-color secondary_sidebar_fg_color white;
+@define-color secondary_sidebar_backdrop_color #272727;
+@define-color secondary_sidebar_shade_color rgba(0, 0, 0, 0.25);
+@define-color secondary_sidebar_border_color rgba(0, 0, 0, 0.36);
+@define-color card_bg_color rgba(255, 255, 255, 0.08);
+@define-color card_fg_color white;
+@define-color card_shade_color rgba(0, 0, 0, 0.36);
+@define-color dialog_bg_color #383838;
+@define-color dialog_fg_color white;
+@define-color popover_bg_color #383838;
+@define-color popover_fg_color white;
+@define-color popover_shade_color rgba(0, 0, 0, 0.25);
+@define-color thumbnail_bg_color #383838;
+@define-color thumbnail_fg_color white;
+@define-color shade_color rgba(0, 0, 0, 0.25);
+@define-color scrollbar_outline_color rgba(0, 0, 0, 0.5);
+@import '../gtk-3.0/libadwaita.css';
+@import '../gtk-3.0/libadwaita-tweaks.css';

dotfiles/.local/share/themes/adw-gtk3-dark/index.theme

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+[X-GNOME-Metatheme]
+Name=adw-gtk3-dark
+Type=X-GNOME-Metatheme
+Comment=adw-gtk3-dark theme
+Encoding=UTF-8
+GtkTheme=adw-gtk3-dark

dotfiles/.local/share/themes/adw-gtk3/gtk-3.0/assets/bullet-symbolic.svg

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+<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline"><path d="M388 342c-2.207 0-4 1.793-4 4s1.793 4 4 4c2.208 0 4-1.793 4-4s-1.792-4-4-4z" style="color:#bebebe;font-style:normal;font-variant:normal;font-weight:400;font-stretch:normal;font-size:medium;line-height:normal;font-family:'Andale Mono';text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;letter-spacing:normal;word-spacing:normal;text-transform:none;direction:ltr;text-anchor:start;display:inline;overflow:visible;visibility:visible;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:2.389;marker:none" transform="translate(-381 -339)"/></g></svg>

dotfiles/.local/share/themes/adw-gtk3/gtk-3.0/assets/check-symbolic.svg

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+<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline;opacity:1"><path style="color:#000;display:inline;fill:#bebebe;fill-opacity:1;stroke-linecap:round;-inkscape-stroke:none" d="M414.145 341.9a1.25 1.25 0 0 0-1.766.092l-5.68 6.305-2.881-2.909a1.25 1.25 0 0 0-1.766 1.77l4.743 4.768 7.442-8.262a1.25 1.25 0 0 0-.092-1.764z" transform="translate(-401 -339)"/></g></svg>

dotfiles/.local/share/themes/adw-gtk3/gtk-3.0/assets/dash-symbolic.svg

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+<svg height="14" width="14" xmlns="http://www.w3.org/2000/svg"><g style="display:inline"><path style="color:#000;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000;solid-opacity:1;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:4;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate" d="M407 367h8c1.108 0 2 .892 2 2s-.892 2-2 2h-8c-1.108 0-2-.892-2-2s.892-2 2-2z" transform="translate(-404 -362)"/></g></svg>