diff --git a/main.go b/main.go
index 57ccfdd..94f4373 100644
--- a/main.go
+++ b/main.go
@@ -16,7 +16,7 @@ import (
 	"strings"
 )
 
-const Version = "0.2.18"
+const Version = "0.2.19"
 
 func main() {
 	// Migration one-shot des anciens skills (SKILLS/<nom>/SKILL.md) vers la
diff --git a/presets.go b/presets.go
index ed88179..44fa67d 100644
--- a/presets.go
+++ b/presets.go
@@ -51,15 +51,51 @@ func withDisplayName(content, name string) string {
 	return line + "\n" + content
 }
 
+// presetFingerprint hashes config content while IGNORING the device-level keys
+// (preservedKeys) that SwitchToPreset re-applies on top of a freshly copied
+// preset. Without this, those injected MEM_MODE/CRAWL4AI_URL lines make
+// config.env differ from every preset file, so no preset is ever detected as
+// active (regression introduced when preservedKeys were added). We strip those
+// assignment lines symmetrically from both sides before hashing so a plain
+// content match still identifies the active preset.
+func presetFingerprint(content []byte) string {
+	var b strings.Builder
+	for _, line := range strings.Split(string(content), "\n") {
+		if isPreservedAssignment(line) {
+			continue
+		}
+		b.WriteString(line)
+		b.WriteByte('\n')
+	}
+	h := sha1.Sum([]byte(b.String()))
+	return hex.EncodeToString(h[:])
+}
+
+// isPreservedAssignment reports whether a line assigns one of the preservedKeys
+// (commented or not), e.g. `MEM_MODE=off` or `# CRAWL4AI_URL=...`.
+func isPreservedAssignment(line string) bool {
+	t := strings.TrimSpace(strings.TrimPrefix(strings.TrimSpace(line), "#"))
+	eq := strings.IndexByte(t, '=')
+	if eq < 0 {
+		return false
+	}
+	key := strings.TrimSpace(t[:eq])
+	for _, k := range preservedKeys {
+		if key == k {
+			return true
+		}
+	}
+	return false
+}
+
 // ListPresets returns all configs/*.env, marking the one whose contents match
-// the current config.env (by SHA-1), sorted by display name.
+// the current config.env (ignoring device-level preservedKeys), sorted by name.
 func ListPresets() ([]Preset, error) {
 	dir := presetsDir()
 	_ = os.MkdirAll(dir, 0o755)
 	cur := ""
 	if b, err := os.ReadFile(confPath()); err == nil {
-		h := sha1.Sum(b)
-		cur = hex.EncodeToString(h[:])
+		cur = presetFingerprint(b)
 	}
 	entries, err := os.ReadDir(dir)
 	if err != nil {
@@ -75,13 +111,12 @@ func ListPresets() ([]Preset, error) {
 		if err != nil {
 			continue
 		}
-		h := sha1.Sum(b)
 		id := strings.TrimSuffix(e.Name(), ".env")
 		out = append(out, Preset{
 			ID:     id,
 			Name:   presetDisplayName(string(b), id),
 			Path:   p,
-			Active: hex.EncodeToString(h[:]) == cur,
+			Active: presetFingerprint(b) == cur,
 		})
 	}
 	sort.Slice(out, func(i, j int) bool { return out[i].Name < out[j].Name })
diff --git a/resource_windows_amd64.syso b/resource_windows_amd64.syso
index f1903fd..fc5dc40 100644
Binary files a/resource_windows_amd64.syso and b/resource_windows_amd64.syso differ
diff --git a/resource_windows_arm64.syso b/resource_windows_arm64.syso
index 6ab01a8..d758a2c 100644
Binary files a/resource_windows_arm64.syso and b/resource_windows_arm64.syso differ
diff --git a/ui/index.html b/ui/index.html
index 8fad618..1f60548 100644
--- a/ui/index.html
+++ b/ui/index.html
@@ -21,9 +21,9 @@
    thème plus tard : 1) copier un bloc [data-theme="…"] ci-dessous en changeant
    les valeurs, 2) ajouter son {id,label} au registre THEMES (voir le JS). Le
    reste (sélecteur, persistance, application) est automatique. */
-:root{color-scheme:dark;--bg:#0d1117;--panel:#161b22;--border:#30363d;--text:#e6edf3;--dim:#7d8590;--accent:#58a6ff;--ok:#58a6ff;--warn:#d29922;--err:#f85149;--mag:#bc8cff;--code-bg:#0d1117;--danger-bg:#3d1f23;--warn-bg:#3d2f1f}
-[data-theme="dark"]{color-scheme:dark;--bg:#0d1117;--panel:#161b22;--border:#30363d;--text:#e6edf3;--dim:#7d8590;--accent:#58a6ff;--ok:#58a6ff;--warn:#d29922;--err:#f85149;--mag:#bc8cff;--code-bg:#0d1117;--danger-bg:#3d1f23;--warn-bg:#3d2f1f}
-[data-theme="light"]{color-scheme:light;--bg:#f0f1f4;--panel:#f8f9fb;--border:#d7dbe1;--text:#24292f;--dim:#636b74;--accent:#0969da;--ok:#0969da;--warn:#9a6700;--err:#cf222e;--mag:#8250df;--code-bg:#e6e9ee;--danger-bg:#fbe6e6;--warn-bg:#fbefda}
+:root{color-scheme:dark;--bg:#0d1117;--panel:#161b22;--border:#30363d;--text:#e6edf3;--dim:#7d8590;--accent:#58a6ff;--accent-bg:rgba(88,166,255,.12);--ok:#58a6ff;--warn:#d29922;--err:#f85149;--mag:#bc8cff;--code-bg:#0d1117;--danger-bg:#3d1f23;--warn-bg:#3d2f1f}
+[data-theme="dark"]{color-scheme:dark;--bg:#0d1117;--panel:#161b22;--border:#30363d;--text:#e6edf3;--dim:#7d8590;--accent:#58a6ff;--accent-bg:rgba(88,166,255,.12);--ok:#58a6ff;--warn:#d29922;--err:#f85149;--mag:#bc8cff;--code-bg:#0d1117;--danger-bg:#3d1f23;--warn-bg:#3d2f1f}
+[data-theme="light"]{color-scheme:light;--bg:#f0f1f4;--panel:#f8f9fb;--border:#d7dbe1;--text:#24292f;--dim:#636b74;--accent:#0969da;--accent-bg:rgba(9,105,218,.10);--ok:#0969da;--warn:#9a6700;--err:#cf222e;--mag:#8250df;--code-bg:#e6e9ee;--danger-bg:#fbe6e6;--warn-bg:#fbefda}
 *{box-sizing:border-box}
 body{margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--bg);color:var(--text);height:100vh;height:100dvh;display:flex;font-size:14px}
 /* PWA plein écran (viewport-fit=cover) : on décale le contenu des bords pour ne
@@ -134,7 +134,7 @@ button:disabled{opacity:.5;cursor:not-allowed}
 .row{display:flex;gap:4px;flex-wrap:wrap}
 .preset{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:6px 10px;border:1px solid var(--border);border-radius:6px;margin:4px 0;cursor:pointer;background:var(--panel)}
 .preset:hover{border-color:var(--accent)}
-.preset.active{border-color:var(--ok);color:var(--ok)}
+.preset.active{border-color:var(--accent);color:var(--accent);border-width:1.5px;padding:5.5px 9.5px}
 .preset>span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
 .preset>button{flex-shrink:0}
 .preset-info{flex:1;min-width:0}
diff --git a/versioninfo.json b/versioninfo.json
index 5328b42..12b4d0b 100644
--- a/versioninfo.json
+++ b/versioninfo.json
@@ -3,13 +3,13 @@
     "FileVersion": {
       "Major": 0,
       "Minor": 2,
-      "Patch": 18,
+      "Patch": 19,
       "Build": 0
     },
     "ProductVersion": {
       "Major": 0,
       "Minor": 2,
-      "Patch": 18,
+      "Patch": 19,
       "Build": 0
     },
     "FileFlagsMask": "3f",
@@ -25,7 +25,7 @@
     "LegalCopyright": "Copyright (c) 2026 Jean contributors. MIT License.",
     "OriginalFilename": "jean.exe",
     "ProductName": "Jean",
-    "ProductVersion": "0.2.18",
+    "ProductVersion": "0.2.19",
     "Comments": "https://github.com/nathaninline/jean — projet open source (MIT)"
   },
   "VarFileInfo": {