diff --git a/crates/ui-egui/src/dialogs/effect.rs b/crates/ui-egui/src/dialogs/effect.rs
index d02e8eb0..c8a44c1c 100644
--- a/crates/ui-egui/src/dialogs/effect.rs
+++ b/crates/ui-egui/src/dialogs/effect.rs
@@ -158,6 +158,8 @@ fn choices(effect: &str, key: &str) -> Option<form::Choices> {
         ("blur.radial", "method") => Some(&[("Spin", "spin"), ("Zoom", "zoom")]),
         ("blur.radial", "quality") => Some(&[("Draft", "draft"), ("Good", "good"), ("Best", "best")]),
         ("blur.smart", "quality") => Some(&[("Low", "low"), ("Medium", "medium"), ("High", "high")]),
+        ("path.offsetPath", "joins") => Some(&[("Miter", "miter"), ("Round", "round"), ("Bevel", "bevel")]),
+        ("distort.roughen" | "distort.zigZag", "points") => Some(&[("Smooth", "smooth"), ("Corner", "corner")]),
         _ => None,
     }
 }
@@ -371,3 +373,19 @@ fn confirm(app: &mut VectorcraftApp, d: &Dialog) -> Result<Value, String> {
     app.ui.dialog = None;
     r
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn fields_that_pick_a_value_are_dropdowns_of_its_values() {
+        // The values come from the effect's parameter documentation (`joins: "miter"|"round"|…`).
+        for (effect, key) in [("path.offsetPath", "joins"), ("distort.zigZag", "points"), ("distort.roughen", "points")] {
+            let doc = vectorcraft_effects::effect_info(effect).unwrap().params;
+            let listed = doc.split(&format!("{key}: ")).nth(1).unwrap().split([',', '}', ' ']).next().unwrap().to_string();
+            let values: Vec<String> = choices(effect, key).unwrap().iter().map(|(_, v)| format!("\"{v}\"")).collect();
+            assert_eq!(values.join("|"), listed, "{effect} {key}");
+        }
+    }
+}
diff --git a/crates/ui-egui/src/dialogs/form.rs b/crates/ui-egui/src/dialogs/form.rs
index 73ee6cad..b18dec07 100644
--- a/crates/ui-egui/src/dialogs/form.rs
+++ b/crates/ui-egui/src/dialogs/form.rs
@@ -215,7 +215,9 @@ pub(super) fn param_fields(
             d.fields.iter().filter(|(k, _)| !k.starts_with("__") && k.as_str() != "preview").map(|(k, v)| (k.clone(), v.clone())).collect();
         keys.sort_by_key(|(k, _)| rank(k));
         for (k, v) in keys {
-            ui.label(egui::RichText::new(humanized(&k)).color(t.text));
+            // A size's Relative / Absolute pair (Roughen, Zig Zag, Tweak) is its own label.
+            let relative = k == "relative" && v.is_boolean();
+            ui.label(egui::RichText::new(if relative { String::new() } else { humanized(&k) }).color(t.text));
             if let Some(cur) = crate::widgets::blend_param(&k, &v) {
                 if let Some(m) = crate::widgets::blend_param_dropdown(ui, ("fx-blend", &k), cur) {
                     d.fields.insert(k, m);
@@ -247,9 +249,19 @@ pub(super) fn param_fields(
                         changed = true;
                     }
                 }
-                Value::Bool(mut b) => {
-                    if ui.checkbox(&mut b, "").changed() {
-                        d.fields.insert(k, json!(b));
+                Value::Bool(b) if relative => {
+                    ui.horizontal(|ui| {
+                        for (label, on) in [(tl!("Relative"), true), (tl!("Absolute"), false)] {
+                            if crate::widgets::radio(ui, label, b == on, true) && b != on {
+                                d.fields.insert(k.clone(), json!(on));
+                                changed = true;
+                            }
+                        }
+                    });
+                }
+                Value::Bool(b) => {
+                    if crate::widgets::check(ui, "", b, true) {
+                        d.fields.insert(k, json!(!b));
                         changed = true;
                     }
                 }
diff --git a/crates/ui-egui/src/i18n/es.tsv b/crates/ui-egui/src/i18n/es.tsv
index cd1d11e4..8476f913 100644
--- a/crates/ui-egui/src/i18n/es.tsv
+++ b/crates/ui-egui/src/i18n/es.tsv
@@ -2564,6 +2564,9 @@
 	Smart Guides (⌘U)	Guías inteligentes (⌘U)
 	Smart Punctuation…	Puntuación inteligente…
 	Smooth	Suavizar
+	Corner	Vértice
+	Relative	Relativo
+	Absolute	Absoluto
 	Smooth Color	Color suavizado
 	Smooth Tool	Herramienta Suavizar
 	Snap Curves To Lines	Ajustar curvas a líneas
diff --git a/crates/ui-egui/src/i18n/fr.tsv b/crates/ui-egui/src/i18n/fr.tsv
index 873fc3cf..b8260122 100644
--- a/crates/ui-egui/src/i18n/fr.tsv
+++ b/crates/ui-egui/src/i18n/fr.tsv
@@ -2561,6 +2561,9 @@
 	Smart Guides (⌘U)	Repères commandés (⌘U)
 	Smart Punctuation…	Ponctuation typographique…
 	Smooth	Lisser
+	Corner	Angle
+	Relative	Relatif
+	Absolute	Absolu
 	Smooth Color	Couleur lissée
 	Smooth Tool	Outil Arrondi
 	Snap Curves To Lines	Aimanter les courbes aux lignes
diff --git a/crates/ui-egui/src/i18n/it.tsv b/crates/ui-egui/src/i18n/it.tsv
index 2545208c..aa5edeb5 100644
--- a/crates/ui-egui/src/i18n/it.tsv
+++ b/crates/ui-egui/src/i18n/it.tsv
@@ -2564,6 +2564,9 @@
 	Smart Guides (⌘U)	Guide sensibili (⌘U)
 	Smart Punctuation…	Punteggiatura intelligente…
 	Smooth	Smussa
+	Corner	Angolo
+	Relative	Relativo
+	Absolute	Assoluto
 	Smooth Color	Colore graduale
 	Smooth Tool	Strumento Smussa
 	Snap Curves To Lines	Aggancia curve a linee
diff --git a/crates/ui-egui/src/i18n/ja.tsv b/crates/ui-egui/src/i18n/ja.tsv
index d3744f32..80e8c16b 100644
--- a/crates/ui-egui/src/i18n/ja.tsv
+++ b/crates/ui-egui/src/i18n/ja.tsv
@@ -2379,6 +2379,9 @@
 	Smart Guides (View → Smart Guides)	スマートガイド (表示 → スマートガイド)
 	Smart Guides (⌘U)	スマートガイド (⌘U)
 	Smooth	スムーズ
+	Corner	コーナー
+	Relative	相対
+	Absolute	絶対
 	Smooth Tool	スムーズツール
 	Snap Curves To Lines	曲線を直線にスナップ
 	View:	表示:
diff --git a/crates/ui-egui/src/i18n/ru.tsv b/crates/ui-egui/src/i18n/ru.tsv
index 542731c6..a3ebf7d4 100644
--- a/crates/ui-egui/src/i18n/ru.tsv
+++ b/crates/ui-egui/src/i18n/ru.tsv
@@ -2560,6 +2560,9 @@
 	Smart Guides (⌘U)	Умные направляющие (⌘U)
 	Smart Punctuation…	Умная пунктуация…
 	Smooth	Сгладить
+	Corner	Угол
+	Relative	Относительно
+	Absolute	Абсолютно
 	Smooth Color	Сглаженный цвет
 	Smooth Tool	Инструмент «Сглаживание»
 	Snap Curves To Lines	Привязывать кривые к линиям
diff --git a/crates/ui-egui/src/i18n/uk.tsv b/crates/ui-egui/src/i18n/uk.tsv
index 058cc687..cb6f3a11 100644
--- a/crates/ui-egui/src/i18n/uk.tsv
+++ b/crates/ui-egui/src/i18n/uk.tsv
@@ -2556,6 +2556,9 @@
 	Smart Guides (⌘U)	Розумні напрямні (⌘U)
 	Smart Punctuation…	Розумна пунктуація…
 	Smooth	Згладити
+	Corner	Кут
+	Relative	Відносно
+	Absolute	Абсолютно
 	Smooth Color	Згладжений колір
 	Smooth Tool	Інструмент «Згладжування»
 	Snap Curves To Lines	Прив’язувати криві до ліній
diff --git a/crates/ui-egui/src/i18n/zh-hans.tsv b/crates/ui-egui/src/i18n/zh-hans.tsv
index bcf90783..de889f02 100644
--- a/crates/ui-egui/src/i18n/zh-hans.tsv
+++ b/crates/ui-egui/src/i18n/zh-hans.tsv
@@ -2481,6 +2481,9 @@
 	Smart Guides (⌘U)	智能参考线 (⌘U)
 	Smart Punctuation…	智能标点…
 	Smooth	平滑
+	Corner	尖角
+	Relative	相对
+	Absolute	绝对
 	Smooth Color	平滑颜色
 	Smooth Tool	平滑工具
 	Snap Curves To Lines	将曲线对齐到直线
diff --git a/crates/ui-egui/src/i18n/zh-hant.tsv b/crates/ui-egui/src/i18n/zh-hant.tsv
index e0657d72..f4dc6efc 100644
--- a/crates/ui-egui/src/i18n/zh-hant.tsv
+++ b/crates/ui-egui/src/i18n/zh-hant.tsv
@@ -2567,6 +2567,9 @@
 	Smart Guides (⌘U)	智慧型參考線 (⌘U)
 	Smart Punctuation…	智慧型標點…
 	Smooth	平滑
+	Corner	角點
+	Relative	相對
+	Absolute	絕對
 	Smooth Color	平滑顏色
 	Smooth Tool	平滑工具
 	Snap Curves To Lines	將曲線靠齊線條