feat(config): enforce flat decoration, disable blur and adjust Kitty transparency defaults

dot_config/hypr/looknfeel.lua

@@ -1,4 +1,56 @@
 -- Change the default Omarchy look'n'feel.
+--
+-- Load order is Omarchy defaults -> current theme's hyprland.lua -> this file
+-- (see $OMARCHY_PATH/default/hypr/omarchy.lua), so whatever is set here is the
+-- last writer and wins over the theme. That is the point of this file: a theme
+-- picks colours, the compositor's feel stays ours.
+
+-- Omarchy 4's decoration defaults, pinned explicitly.
+--
+-- Stock quattro is flat and cheap: rounding 0, blur off, shadow off
+-- ($OMARCHY_PATH/default/hypr/looknfeel.lua). Most third-party themes ship a
+-- hyprland.lua that turns glass on instead -- Cyberdream and Spectra both did --
+-- and on this box that is a bad trade: blur at size 6 / 3 passes over an eDP
+-- panel plus a 5K Studio Display is real frame time on an iGPU sharing system
+-- memory, and rounded corners plus per-window opacity make the Chromium and
+-- Electron surfaces (which cannot paint a transparent background themselves)
+-- show wallpaper where page background should be.
+--
+-- Turning blur off globally also neutralises any layer_rule blur a theme adds
+-- for the Quickshell surfaces: a layer rule cannot blur while
+-- decoration:blur:enabled is false.
+hl.config({
+  decoration = {
+    rounding = 0,
+
+    blur = {
+      enabled = false,
+    },
+
+    shadow = {
+      enabled = false,
+    },
+  },
+
+  group = {
+    groupbar = {
+      -- Square tab plates, to match rounding = 0 above.
+      gradient_rounding = 0,
+    },
+  },
+})
+
+-- Omarchy tags every mapped window `default-opacity` and fades it with this
+-- rule; themes re-issue it with deeper values (Cyberdream used 0.98 / 0.92).
+-- Window rules are last-match-wins, so restating the default here puts every
+-- window that did not explicitly opt out of the tag back on stock fade.
+-- Terminals keep their own alpha (kitty's `background_opacity`) on top of it.
+o.window({ tag = "default-opacity" }, { opacity = "0.985 0.96" })
+
+-- Themes are also free to re-enable the workspace slide (Spectra sets
+-- `workspaces` with its "flow" bezier); Omarchy's default is off. Restate it.
+-- workspacesIn/workspacesOut are not overridden anywhere, so they inherit this.
+hl.animation({ leaf = "workspaces", enabled = false })
 
 -- https://wiki.hypr.land/Configuring/Basics/Variables/#general
 -- hl.config({
@@ -13,18 +65,6 @@
 --   },
 -- })
 
--- https://wiki.hypr.land/Configuring/Basics/Variables/#decoration
--- hl.config({
---   decoration = {
---     -- Use round window corners.
---     rounding = 8,
---
---     -- Dim unfocused windows (0.0 = no dim, 1.0 = fully dimmed).
---     dim_inactive = true,
---     dim_strength = 0.15,
---   },
--- })
-
 -- https://wiki.hypr.land/Configuring/Basics/Variables/#animations
 -- hl.config({
 --   animations = {
@@ -33,13 +73,6 @@
 --   },
 -- })
 
--- The Spectra theme re-enables the workspace slide (its hyprland.lua sets
--- `workspaces` enabled with the "flow" bezier), overriding Omarchy's default
--- `hl.animation({ leaf = "workspaces", enabled = false })`. This file loads
--- after the theme, so turn it back off here. workspacesIn/workspacesOut are
--- not overridden anywhere, so they inherit this.
-hl.animation({ leaf = "workspaces", enabled = false })
-
 -- https://wiki.hypr.land/Configuring/Basics/Variables/#layout
 -- hl.config({
 --   layout = {
@@ -55,51 +88,3 @@ hl.animation({ leaf = "workspaces", enabled = false })
 --     column_width = 0.97,
 --   },
 -- })
-
--- hyprglass (Apple-style liquid glass) is loaded, but the Spectra theme owns
--- blur now: ~/.config/omarchy/themes/spectra/hyprland.lua enables
--- decoration:blur for windows and a layer_rule for the Quickshell surfaces.
--- Two blur passes over the same surface just costs GPU time, so hyprglass's
--- layer pass stays off here. The namespaces it used to whitelist (waybar,
--- swaync, quickshell:bezel) do not exist under Omarchy 4 anyway -- the shell is
--- Quickshell under omarchy-bar / omarchy-menu / omarchy-notifications / ...
--- To hand the shell surfaces back to hyprglass: set layers.enabled = 1, restore
--- the hg.layer() calls below with the omarchy-* namespaces, and drop those same
--- namespaces from the theme's hl.layer_rule.
-if hl.plugin.hyprglass then
-    local hg = hl.plugin.hyprglass
-
-    hg.config({
-        default_theme = "dark",
-        default_preset = "clear",
-        tint_color = 0x8899aa22,
-
-        brightness = 0.9,
-        dark = { brightness = 0.82 },
-        light = { adaptive_boost = 0.5 },
-
-        layers = { enabled = 0 },
-    })
-
-    -- Layer surfaces: each call whitelists the namespace and configures it
-    -- hg.layer("omarchy-bar", { preset = "subtle", mask_threshold = 0.05 })
-    -- hg.layer("omarchy-notifications")
-    -- hg.layer("omarchy-menu", { preset = "ui", mask_threshold = 0.3 })
-
-    -- Presets
-    hg.preset("clear", {
-        glass_opacity = 0.8,
-        blur_strength = 1.5,
-        dark = { brightness = 0.7 },
-        light = { brightness = 1.2 },
-    })
-
-    hg.preset("contrasted", {
-        inherits = "high_contrast",
-        contrast = 1.2,
-        adaptive_dim = 1.5,
-        dark = { tint_color = 0x02142aa9 },
-    })
-end
-
-

dot_config/kitty/kitty.conf

@@ -3,9 +3,16 @@ font_family VictorMono Nerd Font
 bold_italic_font auto
 window_padding_width 8
 hide_window_decorations yes
-# Fallback for themes that ship no opacity; the Omarchy theme include at the
-# bottom of this file overrides it (Spectra sets 0.55).
+# Transparency: kitty's own alpha, not the compositor's -- Hyprland fades a
+# window uniformly (chrome included), kitty only makes the cell background
+# translucent, so text stays fully opaque on top of it.
 background_opacity 0.9
+# Per-window blur without global blur. Hyprland 0.56 implements the staging
+# protocol ext-background-effect-v1 and kitty's Wayland backend speaks it, so
+# kitty asks the compositor to blur the region behind its own surface. That is
+# why hypr/looknfeel.lua can keep decoration:blur:enabled = false: nothing else
+# on screen pays for the blur pass. Needs background_opacity < 1.
+background_blur 1
 cursor_blink_interval 1
 copy_on_select auto
 strip_trailing_spaces smart