diff --git a/docker/frontend/src/App.tsx b/docker/frontend/src/App.tsx
index 7205aec..e338efb 100644
--- a/docker/frontend/src/App.tsx
+++ b/docker/frontend/src/App.tsx
@@ -4028,7 +4028,7 @@ export function Workspace() {
         <div>
           <span className="dev-box-title" style={{ marginBottom: '6px', display: 'block' }}>COLOR BANDS</span>
           <ChipRow
-            grid
+            grid4
             chips={HSL_BANDS.map((b) => {
               const band = recipe.adjustments.hslBands?.[b.id];
               const moved = !!band && (band[0] !== 0 || band[1] !== 0 || band[2] !== 0);
@@ -4050,7 +4050,7 @@ export function Workspace() {
 
         {hslBand && (
           <div className="dev-subgroup" style={{ marginTop: '4px' }}>
-            <div className="dev-subgroup-title" style={{ display: 'flex', justifyContent: 'space-between' }}>
+            <div className="dev-subgroup-title" style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
               <span>BAND: {HSL_BANDS.find((b) => b.id === hslBand)?.label}</span>
               {(recipe.adjustments.hslBands?.[hslBand]?.[0] || recipe.adjustments.hslBands?.[hslBand]?.[1] || recipe.adjustments.hslBands?.[hslBand]?.[2]) ? (
                 <button
@@ -4082,39 +4082,45 @@ export function Workspace() {
               };
               return (
                 <>
-                  <div className="dev-row">
-                    <span className="dev-row-label">Hue</span>
-                    <input
-                      type="range"
-                      min={-30}
-                      max={30}
-                      value={bandVals[0]}
-                      onChange={(e) => updateBand(0, Number(e.target.value))}
-                    />
-                    <span className="dev-row-value">{bandVals[0] > 0 ? `+${bandVals[0]}` : bandVals[0]}</span>
-                  </div>
-                  <div className="dev-row">
-                    <span className="dev-row-label">Saturation</span>
-                    <input
-                      type="range"
-                      min={-100}
-                      max={100}
-                      value={bandVals[1]}
-                      onChange={(e) => updateBand(1, Number(e.target.value))}
-                    />
-                    <span className="dev-row-value">{bandVals[1] > 0 ? `+${bandVals[1]}` : bandVals[1]}</span>
-                  </div>
-                  <div className="dev-row">
-                    <span className="dev-row-label">Luminance</span>
-                    <input
-                      type="range"
-                      min={-100}
-                      max={100}
-                      value={bandVals[2]}
-                      onChange={(e) => updateBand(2, Number(e.target.value))}
-                    />
-                    <span className="dev-row-value">{bandVals[2] > 0 ? `+${bandVals[2]}` : bandVals[2]}</span>
-                  </div>
+                  <MiniSlider
+                    label="Hue"
+                    value={bandVals[0]}
+                    min={-10}
+                    max={10}
+                    step={1}
+                    defaultValue={0}
+                    format={(v) => v.toFixed(1)}
+                    prefix={`dev-hsl-${hslBand}`}
+                    dataKey={`dev-hsl-${hslBand}-hue`}
+                    onChange={(v) => updateBand(0, v)}
+                    onReset={() => updateBand(0, 0)}
+                  />
+                  <MiniSlider
+                    label="Saturation"
+                    value={bandVals[1]}
+                    min={-10}
+                    max={10}
+                    step={1}
+                    defaultValue={0}
+                    format={(v) => v.toFixed(1)}
+                    prefix={`dev-hsl-${hslBand}`}
+                    dataKey={`dev-hsl-${hslBand}-sat`}
+                    onChange={(v) => updateBand(1, v)}
+                    onReset={() => updateBand(1, 0)}
+                  />
+                  <MiniSlider
+                    label="Luminance"
+                    value={bandVals[2]}
+                    min={-10}
+                    max={10}
+                    step={1}
+                    defaultValue={0}
+                    format={(v) => v.toFixed(1)}
+                    prefix={`dev-hsl-${hslBand}`}
+                    dataKey={`dev-hsl-${hslBand}-lum`}
+                    onChange={(v) => updateBand(2, v)}
+                    onReset={() => updateBand(2, 0)}
+                  />
                 </>
               );
             })()}
@@ -4122,49 +4128,78 @@ export function Workspace() {
         )}
 
         <div className="dev-subgroup" style={{ marginTop: '4px' }}>
-          <div className="dev-subgroup-title">IMAGE MASTER</div>
-          <div className="dev-row">
-            <span className="dev-row-label">Hue</span>
-            <input
-              type="range"
-              min={-180}
-              max={180}
-              value={recipe.adjustments.hslHue ?? 0}
-              onChange={(e) => {
-                remember();
-                setAdjustment({ hslHue: Number(e.target.value) });
-              }}
-            />
-            <span className="dev-row-value">{(recipe.adjustments.hslHue ?? 0) > 0 ? `+${recipe.adjustments.hslHue}` : recipe.adjustments.hslHue ?? 0}</span>
-          </div>
-          <div className="dev-row">
-            <span className="dev-row-label">Saturation</span>
-            <input
-              type="range"
-              min={-100}
-              max={100}
-              value={recipe.adjustments.hslSat ?? 0}
-              onChange={(e) => {
-                remember();
-                setAdjustment({ hslSat: Number(e.target.value) });
-              }}
-            />
-            <span className="dev-row-value">{(recipe.adjustments.hslSat ?? 0) > 0 ? `+${recipe.adjustments.hslSat}` : recipe.adjustments.hslSat ?? 0}</span>
-          </div>
-          <div className="dev-row">
-            <span className="dev-row-label">Luminance</span>
-            <input
-              type="range"
-              min={-100}
-              max={100}
-              value={recipe.adjustments.hslLum ?? 0}
-              onChange={(e) => {
-                remember();
-                setAdjustment({ hslLum: Number(e.target.value) });
-              }}
-            />
-            <span className="dev-row-value">{(recipe.adjustments.hslLum ?? 0) > 0 ? `+${recipe.adjustments.hslLum}` : recipe.adjustments.hslLum ?? 0}</span>
+          <div className="dev-subgroup-title" style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+            <span>IMAGE MASTER</span>
+            {((recipe.adjustments.hslHue ?? 0) !== 0 || (recipe.adjustments.hslSat ?? 0) !== 0 || (recipe.adjustments.hslLum ?? 0) !== 0) ? (
+              <button
+                type="button"
+                style={{ background: 'none', border: 'none', color: 'var(--accent)', cursor: 'pointer', fontSize: '10px' }}
+                onClick={() => {
+                  remember();
+                  setAdjustment({ hslHue: 0, hslSat: 0, hslLum: 0 });
+                }}
+              >
+                RESET
+              </button>
+            ) : null}
           </div>
+          <MiniSlider
+            label="Hue"
+            value={recipe.adjustments.hslHue ?? 0}
+            min={-10}
+            max={10}
+            step={1}
+            defaultValue={0}
+            format={(v) => v.toFixed(1)}
+            prefix="dev-hsl-master"
+            dataKey="dev-hsl-master-hue"
+            onChange={(v) => {
+              remember();
+              setAdjustment({ hslHue: v });
+            }}
+            onReset={() => {
+              remember();
+              setAdjustment({ hslHue: 0 });
+            }}
+          />
+          <MiniSlider
+            label="Saturation"
+            value={recipe.adjustments.hslSat ?? 0}
+            min={-10}
+            max={10}
+            step={1}
+            defaultValue={0}
+            format={(v) => v.toFixed(1)}
+            prefix="dev-hsl-master"
+            dataKey="dev-hsl-master-sat"
+            onChange={(v) => {
+              remember();
+              setAdjustment({ hslSat: v });
+            }}
+            onReset={() => {
+              remember();
+              setAdjustment({ hslSat: 0 });
+            }}
+          />
+          <MiniSlider
+            label="Luminance"
+            value={recipe.adjustments.hslLum ?? 0}
+            min={-10}
+            max={10}
+            step={1}
+            defaultValue={0}
+            format={(v) => v.toFixed(1)}
+            prefix="dev-hsl-master"
+            dataKey="dev-hsl-master-lum"
+            onChange={(v) => {
+              remember();
+              setAdjustment({ hslLum: v });
+            }}
+            onReset={() => {
+              remember();
+              setAdjustment({ hslLum: 0 });
+            }}
+          />
         </div>
       </div>
     ),
diff --git a/docker/frontend/src/styles/app.css b/docker/frontend/src/styles/app.css
index c796807..a484996 100644
--- a/docker/frontend/src/styles/app.css
+++ b/docker/frontend/src/styles/app.css
@@ -201,6 +201,30 @@
   font-weight: 400;
   white-space: nowrap;
 }
+.chip-row.grid-4 {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 4px;
+  width: 100%;
+}
+.chip-row.grid-4 .chip {
+  justify-content: center;
+  text-align: center;
+  flex-direction: column;
+  align-items: center;
+  gap: 2px;
+  padding: 4px 2px;
+  font-size: 10px;
+  font-weight: 400;
+  white-space: nowrap;
+}
+.chip-row.grid-4 .chip .chip-label {
+  font-size: 9.5px;
+}
+.chip-row.grid-4 .chip .chip-dot {
+  width: 8px;
+  height: 8px;
+}
 .chip-label {
   font-weight: 400;
   letter-spacing: 0.02em;
diff --git a/docker/frontend/src/ui/ChipColumn.tsx b/docker/frontend/src/ui/ChipColumn.tsx
index a85ff75..b6c2176 100644
--- a/docker/frontend/src/ui/ChipColumn.tsx
+++ b/docker/frontend/src/ui/ChipColumn.tsx
@@ -72,19 +72,21 @@ export function ChipRow({
   chips,
   grid,
   grid3,
+  grid4,
   list,
   glyph,
 }: {
   chips: ChipDef[];
   grid?: boolean;
   grid3?: boolean;
+  grid4?: boolean;
   list?: boolean;
   // The mark drawn at the head of every row of a `list` (a frame, a look). It
   // is decoration and nothing else — the name beside it is the row.
   glyph?: string;
 }) {
   return (
-    <div className={`chip-row${list ? ' list' : ''}${grid3 ? ' grid-3' : grid ? ' grid' : ''}`}>
+    <div className={`chip-row${list ? ' list' : ''}${grid4 ? ' grid-4' : grid3 ? ' grid-3' : grid ? ' grid' : ''}`}>
       {chips.map((chip) =>
         chip.divider ? (
           <span key={chip.key} className="chip-rule" role="separator" aria-orientation="horizontal" />