tmp colors

.config/forge/stylesheet/forge/stylesheet.css

@@ -1,11 +1,11 @@
 .window-unfocused-border {
   border-width: 3px;
-  border-color: rgb(174, 214, 222);
+  border-color: rgb(150, 208, 221);
   border-style: solid;
   border-radius: 12px;
 }
 .tiled {
-  color: rgb(222, 237, 241);
+  color: rgb(221, 236, 240);
   opacity: 1;
   border-width: 3px;
 }
@@ -15,23 +15,23 @@
   border-width: 3px;
 }
 .stacked {
-  color: rgb(2, 131, 151);
+  color: rgb(0, 110, 129);
   opacity: 1;
   border-width: 3px;
 }
 .tabbed {
-  color: rgb(2, 131, 151);
+  color: rgb(0, 110, 129);
   opacity: 1;
   border-width: 3px;
 }
 .floated {
-  color: rgb(2, 131, 151);
+  color: rgb(0, 110, 129);
   border-width: 3px;
   opacity: 1;
 }
 .window-tiled-border {
   border-width: 4px;
-  border-color: rgb(222, 237, 241);
+  border-color: rgb(221, 236, 240);
   border-style: solid;
   border-radius: 12px;
 }
@@ -53,13 +53,13 @@
 }
 .window-stacked-border {
   border-width: 3px;
-  border-color: rgb(2, 131, 151);
+  border-color: rgb(0, 110, 129);
   border-style: solid;
   border-radius: 12px;
 }
 .window-tabbed-border {
   border-width: 3px;
-  border-color: rgb(2, 131, 151);
+  border-color: rgb(0, 110, 129);
   border-style: solid;
   border-radius: 12px;
 }
@@ -67,17 +67,17 @@
   border-radius: 8px;
 }
 .window-tabbed-tab {
-  background-color: rgb(10, 98, 113);
+  background-color: rgb(0, 77, 92);
-  border-color: rgba(10, 98, 113, 0.6);
+  border-color: rgba(0, 77, 92, 0.6);
   border-width: 1px;
   border-radius: 8px;
-  color: rgb(174, 214, 222);
+  color: rgb(150, 208, 221);
   margin: 1px;
   box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2);
 }
 .window-tabbed-tab-active {
-  background-color: rgb(2, 131, 151);
+  background-color: rgb(0, 110, 129);
-  color: rgb(222, 237, 241);
+  color: rgb(221, 236, 240);
   box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2);
 }
 .window-tabbed-tab-close {
@@ -85,14 +85,14 @@
   margin: 4px;
   border-radius: 12px;
   width: 12px;
-  background-color: rgb(8, 110, 127);
+  background-color: rgb(0, 110, 129);
 }
 .window-tabbed-tab-icon {
   margin: 3px;
 }
 .window-floated-border {
   border-width: 4px;
-  border-color: rgb(2, 131, 151);
+  border-color: rgb(0, 110, 129);
   border-style: solid;
   border-radius: 12px;
 }
@@ -105,21 +105,21 @@
 }
 .window-tilepreview-stacked {
   border-width: 1px;
-  border-color: rgba(2, 131, 151, 0.4);
+  border-color: rgba(0, 110, 129, 0.4);
   border-style: solid;
   border-radius: 12px;
-  background-color: rgba(2, 131, 151, 0.3);
+  background-color: rgba(0, 110, 129, 0.3);
 }
 .window-tilepreview-swap {
   border-width: 1px;
-  border-color: rgba(124, 189, 203, 0.4);
+  border-color: rgba(89, 177, 196, 0.4);
   border-style: solid;
   border-radius: 12px;
-  background-color: rgba(124, 189, 203, 0.4);
+  background-color: rgba(89, 177, 196, 0.4);
 }
 .window-tilepreview-tabbed {
   border-width: 1px;
-  border-color: rgba(2, 131, 151, 0.4);
+  border-color: rgba(0, 110, 129, 0.4);
   border-style: solid;
   border-radius: 12px;
 }

.config/gnome-settings/README.md

@@ -36,29 +36,55 @@ Process:
 ## Color Palette
 
 
-A teal ramp from light to dark,
+A teal ramp of 7 stops from light to dark,
-    plus two neutral tones for the shell chrome.
+    plus two neutral tones for the shell chrome,
+    plus 5 accent hues with 2 shades each for the terminal ANSI colors.
+
+All colors except the two neutrals can be verified
+    with [`derive-palette.py`](./derive-palette.py)
+    to be derived from GNOME's "teal" accent alone.
+
+The ramp is uniform in perceived lightness (i.e., OKLCH),
+    with the accent centered by arithmetic:
+    In dark mode it reads light-to-dark (e.g., text on dark surfaces),
+    in light mode dark-to-light.
 
 Translucent colors are always alpha-variants of a stop,
-    used for `forge`'s tile previews and tab decorations.
+    used for tile previews and tab decorations by `forge`.
 
 
 | Stop | Hex       | RGB                | Role                                          |
-|------|-----------|--------------------|----------------------------------------------|
+|------|-----------|--------------------|-----------------------------------------------|
-| 1    | `#DEEDF1` | rgb(222, 237, 241) | Foreground and text, focused borders         |
+| 1    | `#DDECF0` | rgb(221, 236, 240) | Foreground and text, focused borders          |
-| 2    | `#AED6DE` | rgb(174, 214, 222) | Quiet chrome: bar and unfocused windows      |
+| 2    | `#96D0DD` | rgb(150, 208, 221) | Quiet chrome: bar and unfocused windows       |
-| 3    | `#7CBDCB` | rgb(124, 189, 203) | Tile previews                                |
+| 3    | `#59B1C4` | rgb( 89, 177, 196) | Tile previews, borders of active elements     |
-| 4    | `#4AA4B6` | rgb( 74, 164, 182) | Borders of active elements                   |
+| 4    | `#2190A4` | rgb( 33, 144, 164) | Accent                                        |
-| 5    | `#2190A4` | rgb( 33, 144, 164) | Accent                                       |
+| 5    | `#006E81` | rgb(  0, 110, 129) | Stacked/tabbed layouts, tab decorations       |
-| 6    | `#028397` | rgb(  2, 131, 151) | Stacked and tabbed layout, floated windows   |
+| 6    | `#004D5C` | rgb(  0,  77,  92) | Dimmed and sub-menu backgrounds               |
-| 7    | `#067A8D` | rgb(  6, 122, 141) | Openbar Highlights                           |
+| 7    | `#002E37` | rgb(  0,  46,  55) | Dark base: terminal background                |
-| 8    | `#086E7F` | rgb(  8, 110, 127) | Tab decorations                              |
-| 9    | `#0A6271` | rgb( 10,  98, 113) | Dimmed backgrounds (e.g., inactive tabs)     |
-| 0    | `#054A55` | rgb(  5,  74,  85) | Dark base: terminal and sub-menu backgrounds |
 | gray | `#2E2E32` | rgb( 46,  46,  50) | Surfaces: bar and menu backgrounds            |
 | base | `#000000` | rgb(  0,   0,   0) | Screensaver, shadows                          |
 
 
-Stop 5 is GNOME's default "teal" color,
+Stop 4 is GNOME's "teal",
-    which is one of nine built-in colors that cannot be changed.
+    one of nine built-in accent colors that cannot be changed
-"gray" is GNOME's dark surface gray.
+    (see `--accent-teal` in `libadwaita`).
+"gray" is the dark header-bar and sidebar background in `libadwaita`
+    (see `--headerbar-bg-color` and `--sidebar-bg-color`).
+
+
+### Terminal Accents
+
+
+Derived at the anchor's chroma,
+    with lightness solved for WCAG 4.5:1 against stop 7;
+    "bright" is the same hue lifted by 0.10 in lightness.
+
+
+| Hue     | Normal    | Bright    |
+|---------|-----------|-----------|
+| red     | `#C87B75` | `#EA9A93` |
+| yellow  | `#A38F45` | `#C2AF64` |
+| green   | `#669D68` | `#84BC85` |
+| blue    | `#6D91CC` | `#8BB0ED` |
+| magenta | `#B57DB0` | `#D69CD0` |

.config/gnome-settings/apps.ini

@@ -320,8 +320,8 @@ audible-bell=false
 
 use-theme-colors=false
 # Fallback values for when theme coloring is turned off
-background-color='rgb(5,74,85)'
+background-color='rgb(0,46,55)'
-foreground-color='rgb(222,237,241)'
+foreground-color='rgb(221,236,240)'
 
 bold-is-bright=true
 

.config/gnome-settings/derive-palette.py

@@ -0,0 +1,119 @@
+"""Derive a full color palette from a GNOME accent.
+
+The palette is a single-hue ramp of 7 stops in OKLCH:
+ - All stops share the anchor's hue
+ - Lightness descends in uniform steps, with the anchor centered
+   => Choosing the light end also determines the dark end by mirroring
+ - Chroma follows a bell over lightness, peaking at the anchor
+
+In addition, 5 accent hues with 2 shades each are derived
+for the terminals' ANSI colors.
+
+The resulting values are recorded in the palette table in ./README.md
+and this script is the source of truth for all colors.
+
+Usage: `python3 derive-palette.py`
+       (requires `pip install coloraide` before)
+"""
+
+import coloraide
+
+ANCHOR = "#2190A4"  # GNOME's teal (i.e., libadwaita's "--accent-teal")
+
+L_LIGHT = 0.933  # The one chosen parameter
+
+# Tail values of the chroma bell at the ramp's two ends
+# where the dark tail is held high enough to keep the darkest stop
+# appear in the chosen accent's hue
+C_LIGHT, C_DARK = 0.017, 0.055
+
+# Canonical hue angles (in OKLCH)
+# for the terminal's semantic colors
+ACCENT_HUES = {
+    "red": 25,
+    "yellow": 95,
+    "green": 145,
+    "blue": 260,
+    "magenta": 330,
+}
+
+# The anchor's lightness, chroma, and hue seed everything below
+a = coloraide.Color(ANCHOR).convert("oklch")
+AL, AC, H = a["lightness"], a["chroma"], a["hue"]
+step = (L_LIGHT - AL) / 3
+
+
+def hexify(L, C, h=H):
+    """Convert an OKLCH color to an upper-case sRGB hex string.
+
+    Colors outside the sRGB gamut are fitted by reducing chroma
+    while preserving lightness and hue; in this palette that only
+    affects the darkest stops, where sRGB cannot hold the full chroma.
+    """
+    return (
+        coloraide.Color("oklch", [L, C, h])
+        .convert("srgb")
+        .fit(method="oklch-chroma")
+        .to_string(hex=True, upper=True)
+    )
+
+
+def bell(L):
+    """Return the ramp's chroma at lightness `L`.
+
+    Chroma follows a parabola over lightness: it peaks at the anchor
+    (i.e., `AC`) and falls off to `C_LIGHT` at the light end and `C_DARK`
+    at the dark end of the ramp. So, both ends still appear in the chosen
+    accent's hue without ever exceeding the anchor's saturation.
+    """
+    end = C_LIGHT if L >= AL else C_DARK
+    t = (L - AL) / (3 * step)
+    return AC - (AC - end) * t * t
+
+
+def lift(h):
+    """Return the lightness at which hue `h` reads on the dark base.
+
+    Starting from the anchor's lightness, raise it in steps of 0.01
+    until the color reaches a WCAG 2.1 contrast of 4.5:1 against the
+    ramp's darkest stop (i.e., `dark_base`, defined below but before
+    the first call). The accents' lightness is thereby solved
+    from the contrast requirement rather than chosen by hand.
+    """
+    L = AL
+
+    while (
+        coloraide.Color(hexify(L, AC, h)).contrast(
+            dark_base,
+            method="wcag21",
+        )
+        < 4.5
+    ):
+        L += 0.01
+
+    return L
+
+
+ramp = [
+    hexify(AL + k * step, AC if k == 0 else bell(AL + k * step))
+    for k in range(3, -4, -1)
+]
+
+dark_base = coloraide.Color(ramp[-1])
+
+
+accents = {}
+
+for n, h in ACCENT_HUES.items():
+    L = lift(h)  # Solve only once per hue
+    accents[n] = (
+        hexify(L, AC, h),
+        hexify(L + 0.10, AC, h),
+    )
+
+
+print("ramp:", *ramp)
+
+for n, (norm, bright) in accents.items():
+
+    print(f"{n}: {norm} {bright}")

.config/gnome-settings/misc.ini

@@ -92,8 +92,8 @@ picture-options='zoom'
 picture-uri-dark='file:///home/user/.local/share/backgrounds/dark.jpg'
 picture-uri='file:///home/user/.local/share/backgrounds/light.jpg'
 
-primary-color='#054A55'
+primary-color='#002E37'
-secondary-color='#054A55'
+secondary-color='#002E37'
 
 
 

.config/gnome-settings/shell-extensions.ini

@@ -442,7 +442,7 @@ format='%A  %B %-d, %Y  %H:%M:%S  %Z%z'
 # "padding" matches the border "inset" of 3
 # in ~/.local/bin/patch-forge
 custom-rounded-corner-settings=@a{sv} {}
-global-rounded-corner-settings={'padding': <{'left': uint32 0, 'right': 0, 'top': 0, 'bottom': 0}>, 'keepRoundedCorners': <{'maximized': true, 'fullscreen': true}>, 'borderRadius': <uint32 12>, 'smoothing': <0.0>, 'borderColor': <(0.682, 0.839, 0.871, 1.0)>, 'enabled': <true>}
+global-rounded-corner-settings={'padding': <{'left': uint32 0, 'right': 0, 'top': 0, 'bottom': 0}>, 'keepRoundedCorners': <{'maximized': true, 'fullscreen': true}>, 'borderRadius': <uint32 12>, 'smoothing': <0.0>, 'borderColor': <(0.588, 0.816, 0.867, 1.0)>, 'enabled': <true>}
 
 focused-shadow={'horizontalOffset': 0, 'verticalOffset': 4, 'blurOffset': 28, 'spreadRadius': 4, 'opacity': 60}
 unfocused-shadow={'horizontalOffset': 0, 'verticalOffset': 2, 'blurOffset': 12, 'spreadRadius': -1, 'opacity': 65}
@@ -475,9 +475,9 @@ workspaces-bar-padding=0
 
 active-workspace-font-size=10
 active-workspace-font-weight='700'
-active-workspace-text-color='rgb(222,237,241)'
+active-workspace-text-color='rgb(221,236,240)'
 active-workspace-background-color='rgb(33,144,164)'
-active-workspace-border-color='rgb(74,164,182)'
+active-workspace-border-color='rgb(89,177,196)'
 active-workspace-border-radius=8
 active-workspace-border-width=2
 active-workspace-padding-h=8
@@ -485,7 +485,7 @@ active-workspace-padding-v=2
 
 inactive-workspace-font-size=10
 inactive-workspace-font-weight='600'
-inactive-workspace-text-color='rgb(174,214,222)'
+inactive-workspace-text-color='rgb(150,208,221)'
 inactive-workspace-background-color='rgb(46,46,50)'
 inactive-workspace-border-color='rgb(46,46,50)'
 inactive-workspace-border-radius=8
@@ -495,7 +495,7 @@ inactive-workspace-padding-v=2
 
 empty-workspace-font-size=10
 empty-workspace-font-weight='600'
-empty-workspace-text-color='rgb(6,122,141)'
+empty-workspace-text-color='rgb(0,110,129)'
 empty-workspace-background-color='rgb(46,46,50)'
 empty-workspace-border-color='rgb(46,46,50)'
 empty-workspace-border-radius=8