Add topology display pickers for label, edge-number, and vendor icon colors.

Persist choices in localStorage, apply via canvas CSS variables, and tint router icons with mask fills so each vendor color is editable.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/src/i18n/en.ts

@@ -1466,7 +1466,25 @@ const en = {
     display: "Display",
     canvasBg: "Canvas background",
     canvasBgColor: "Background color",
-    canvasBgReset: "Reset light blue",
+    canvasBgReset: "Reset default",
+    textColors: "Text colors",
+    textColorsReset: "Reset default",
+    labelColor: "NE name",
+    edgeLabelColor: "Link numbers",
+    vendorColors: "Vendor icon colors",
+    vendorColorsReset: "Reset default",
+    vendorTone: {
+      cisco: "Cisco",
+      huawei: "Huawei",
+      zte: "ZTE",
+      juniper: "Juniper",
+      nokia: "Nokia",
+      ericsson: "Ericsson",
+      h3c: "H3C",
+      ruijie: "Ruijie",
+      mikrotik: "MikroTik",
+      gray: "Unknown / unmanaged",
+    },
     hideIp: "Hide IP",
     hideVendor: "Hide vendor",
     hidePorts: "Hide ports",

web/src/i18n/zh.ts

@@ -1460,7 +1460,25 @@ const zh = {
     display: "显示",
     canvasBg: "画布背景",
     canvasBgColor: "背景色",
-    canvasBgReset: "恢复浅蓝",
+    canvasBgReset: "恢复默认",
+    textColors: "文字颜色",
+    textColorsReset: "恢复默认",
+    labelColor: "网元名称",
+    edgeLabelColor: "链路数字",
+    vendorColors: "厂商图标色",
+    vendorColorsReset: "恢复默认",
+    vendorTone: {
+      cisco: "Cisco",
+      huawei: "华为",
+      zte: "中兴",
+      juniper: "Juniper",
+      nokia: "Nokia",
+      ericsson: "Ericsson",
+      h3c: "H3C",
+      ruijie: "锐捷",
+      mikrotik: "MikroTik",
+      gray: "未知/未托管",
+    },
     hideIp: "隐藏 IP",
     hideVendor: "隐藏厂商",
     hidePorts: "隐藏端口",

web/src/index.css

@@ -6877,7 +6877,7 @@ pre {
   min-height: 0;
   background: var(--topo-canvas-bg, #0f172a);
   --xy-edge-label-background-color: transparent;
-  --xy-edge-label-color: #e2e8f0;
+  --xy-edge-label-color: var(--topo-edge-label-color, #e2e8f0);
 }
 
 .topo-canvas:fullscreen,
@@ -7023,50 +7023,39 @@ pre {
   box-shadow: none;
   font-size: 11px;
   text-align: center;
-  /* Base asset /topo/ne-router.png is navy-blue; tints approximate brand hues. */
+  --topo-icon-color: var(--topo-vendor-gray, #94a3b8);
-  --topo-icon-filter: none;
 }
 
-/* Cisco — cyan / light blue (#049FD9) */
 .topo-node--cisco {
-  --topo-icon-filter: hue-rotate(-18deg) saturate(1.25) brightness(1.08);
+  --topo-icon-color: var(--topo-vendor-cisco, #049fd9);
 }
-/* Huawei — red (#CF0A2C); was incorrectly greenish at 155deg */
 .topo-node--huawei {
-  --topo-icon-filter: hue-rotate(128deg) saturate(1.85) brightness(1.02);
+  --topo-icon-color: var(--topo-vendor-huawei, #cf0a2c);
 }
-/* ZTE — keep navy-blue base (#0091DA family) */
 .topo-node--zte {
-  --topo-icon-filter: saturate(1.15) brightness(1.02);
+  --topo-icon-color: var(--topo-vendor-zte, #0091da);
 }
-/* Juniper — green (#84B135) */
 .topo-node--juniper {
-  --topo-icon-filter: hue-rotate(78deg) saturate(1.35) brightness(1.05);
+  --topo-icon-color: var(--topo-vendor-juniper, #84b135);
 }
-/* Nokia / Alcatel — deep blue-purple (#124191) */
 .topo-node--nokia {
-  --topo-icon-filter: hue-rotate(-35deg) saturate(1.2) brightness(0.92);
+  --topo-icon-color: var(--topo-vendor-nokia, #124191);
 }
-/* Ericsson — dark navy */
 .topo-node--ericsson {
-  --topo-icon-filter: hue-rotate(-8deg) saturate(1.1) brightness(0.82);
+  --topo-icon-color: var(--topo-vendor-ericsson, #1e3a5f);
 }
-/* H3C — green (#7AC143) */
 .topo-node--h3c {
-  --topo-icon-filter: hue-rotate(88deg) saturate(1.45) brightness(1.06);
+  --topo-icon-color: var(--topo-vendor-h3c, #7ac143);
 }
-/* Ruijie — purple */
 .topo-node--ruijie {
-  --topo-icon-filter: hue-rotate(45deg) saturate(1.4) brightness(1.0);
+  --topo-icon-color: var(--topo-vendor-ruijie, #7c3aed);
 }
-/* MikroTik — red-orange */
 .topo-node--mikrotik {
-  --topo-icon-filter: hue-rotate(145deg) saturate(1.7) brightness(1.05);
+  --topo-icon-color: var(--topo-vendor-mikrotik, #ea580c);
 }
-/* Unmanaged / unknown vendor */
 .topo-node--gray,
 .topo-node--other {
-  --topo-icon-filter: grayscale(1) brightness(0.92) contrast(0.95);
+  --topo-icon-color: var(--topo-vendor-gray, #94a3b8);
 }
 
 .topo-node__glyph {
@@ -7125,16 +7114,15 @@ pre {
 
 .topo-node.is-selected .topo-node__icon {
   transform: none;
-  filter: var(--topo-icon-filter, none);
 }
 
 .topo-node.is-selected .topo-node__caption {
-  color: #f8fafc;
   font-weight: 700;
 }
 
 .topo-node.is-selected .topo-node__caption-name {
-  color: #93c5fd;
+  color: var(--topo-label-color, #f1f5f9);
+  filter: brightness(1.12);
 }
 
 /* Selected link: light highlight only (do not alter geometry / arrows). */
@@ -7148,11 +7136,18 @@ pre {
   width: 56px;
   height: 56px;
   margin: 0;
-  object-fit: contain;
   pointer-events: none;
   user-select: none;
-  filter: var(--topo-icon-filter, none);
+  background-color: var(--topo-icon-color, #3b82f6);
-  transition: transform 0.12s ease, filter 0.12s ease;
+  -webkit-mask-image: url(/topo/ne-router.png);
+  mask-image: url(/topo/ne-router.png);
+  -webkit-mask-size: contain;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+  mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-position: center;
+  transition: transform 0.12s ease, background-color 0.12s ease;
 }
 
 .topo-node__caption {
@@ -7161,7 +7156,7 @@ pre {
   align-items: center;
   gap: 1px;
   margin-top: 3px;
-  color: #e2e8f0;
+  color: var(--topo-label-color, #f1f5f9);
   line-height: 1.2;
   max-width: 160px;
   pointer-events: none;
@@ -7175,7 +7170,7 @@ pre {
   max-width: 100%;
   font-size: 11px;
   font-weight: 700;
-  color: #f1f5f9;
+  color: var(--topo-label-color, #f1f5f9);
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
@@ -7185,7 +7180,7 @@ pre {
   display: block;
   max-width: 100%;
   font-size: 10px;
-  color: #94a3b8;
+  color: color-mix(in srgb, var(--topo-label-color, #f1f5f9) 55%, #64748b);
   font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
   white-space: nowrap;
   overflow: hidden;
@@ -7198,7 +7193,7 @@ pre {
 }
 
 .topo-canvas .react-flow__edge-text {
-  fill: #e2e8f0;
+  fill: var(--topo-edge-label-color, #e2e8f0);
   font-size: 11px;
   paint-order: stroke;
   stroke: rgba(15, 23, 42, 0.85);
@@ -7207,7 +7202,7 @@ pre {
 
 .topo-edge-label {
   font-size: 11px;
-  color: #e2e8f0;
+  color: var(--topo-edge-label-color, #e2e8f0);
   background: transparent !important;
   border: 0 !important;
   border-radius: 0;
@@ -7220,8 +7215,9 @@ pre {
 }
 
 .topo-edge-label.is-selected {
-  color: #93c5fd;
+  color: var(--topo-edge-label-color, #e2e8f0);
   font-weight: 600;
+  filter: brightness(1.15);
 }
 
 .topo-ctx__member-list {

web/src/pages/TopologyPage.tsx

@@ -7,6 +7,7 @@
   useMemo,
   useRef,
   useState,
+  type CSSProperties,
 } from "react";
 import { useSearchParams } from "react-router-dom";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
@@ -370,17 +371,9 @@ function nodeMatchesQuery(n: Node<NeNodeData>, query: string): boolean {
   return tokens.every((tok) => bits.some((b) => fuzzyIncludes(String(b || ""), tok)));
 }
 
-/** Asset: /topo/ne-router.png (navy blue base); vendors tint via CSS filters. */
+/** Silhouette via CSS mask; fill color comes from --topo-icon-color (vendor palette). */
 function RouterIcon() {
-  return (
+  return <span className="topo-node__icon" aria-hidden="true" />;
-    <img
-      className="topo-node__icon"
-      src="/topo/ne-router.png"
-      alt=""
-      draggable={false}
-      aria-hidden="true"
-    />
-  );
 }
 
 /** Fixed box for onlyRenderVisibleElements (xyflow skips off-screen mount when sized + handles set). */
@@ -455,6 +448,46 @@ const CANVAS_BG_KEY = "netx.topology.canvasBg";
 const DEFAULT_CANVAS_BG = "#0f172a";
 /** Previous light default — migrate so existing sessions pick up dark canvas. */
 const LEGACY_CANVAS_BG = "#dbeafe";
+const LABEL_COLORS_KEY = "netx.topology.labelColors";
+const VENDOR_COLORS_KEY = "netx.topology.vendorColors";
+
+const VENDOR_TONE_KEYS = [
+  "cisco",
+  "huawei",
+  "zte",
+  "juniper",
+  "nokia",
+  "ericsson",
+  "h3c",
+  "ruijie",
+  "mikrotik",
+  "gray",
+] as const;
+type VendorToneKey = (typeof VENDOR_TONE_KEYS)[number];
+type VendorColors = Record<VendorToneKey, string>;
+type LabelColors = { name: string; edgeLabel: string };
+
+const DEFAULT_LABEL_COLORS: LabelColors = {
+  name: "#f1f5f9",
+  edgeLabel: "#e2e8f0",
+};
+
+const DEFAULT_VENDOR_COLORS: VendorColors = {
+  cisco: "#049fd9",
+  huawei: "#cf0a2c",
+  zte: "#0091da",
+  juniper: "#84b135",
+  nokia: "#124191",
+  ericsson: "#1e3a5f",
+  h3c: "#7ac143",
+  ruijie: "#7c3aed",
+  mikrotik: "#ea580c",
+  gray: "#94a3b8",
+};
+
+function isHexColor(value: string): boolean {
+  return /^#[0-9a-fA-F]{6}$/.test(value);
+}
 
 function loadCanvasBg(): string {
   try {
@@ -463,7 +496,7 @@ function loadCanvasBg(): string {
       persistCanvasBg(DEFAULT_CANVAS_BG);
       return DEFAULT_CANVAS_BG;
     }
-    if (/^#[0-9a-fA-F]{6}$/i.test(raw)) return raw;
+    if (isHexColor(raw)) return raw;
   } catch {
     /* ignore */
   }
@@ -478,6 +511,54 @@ function persistCanvasBg(value: string) {
   }
 }
 
+function loadLabelColors(): LabelColors {
+  try {
+    const raw = localStorage.getItem(LABEL_COLORS_KEY);
+    if (!raw) return { ...DEFAULT_LABEL_COLORS };
+    const parsed = JSON.parse(raw) as Partial<LabelColors>;
+    return {
+      name: isHexColor(String(parsed.name || "")) ? String(parsed.name).toLowerCase() : DEFAULT_LABEL_COLORS.name,
+      edgeLabel: isHexColor(String(parsed.edgeLabel || ""))
+        ? String(parsed.edgeLabel).toLowerCase()
+        : DEFAULT_LABEL_COLORS.edgeLabel,
+    };
+  } catch {
+    return { ...DEFAULT_LABEL_COLORS };
+  }
+}
+
+function persistLabelColors(value: LabelColors) {
+  try {
+    localStorage.setItem(LABEL_COLORS_KEY, JSON.stringify(value));
+  } catch {
+    /* ignore */
+  }
+}
+
+function loadVendorColors(): VendorColors {
+  try {
+    const raw = localStorage.getItem(VENDOR_COLORS_KEY);
+    if (!raw) return { ...DEFAULT_VENDOR_COLORS };
+    const parsed = JSON.parse(raw) as Partial<VendorColors>;
+    const out = { ...DEFAULT_VENDOR_COLORS };
+    for (const key of VENDOR_TONE_KEYS) {
+      const c = String(parsed?.[key] || "").trim().toLowerCase();
+      if (isHexColor(c)) out[key] = c;
+    }
+    return out;
+  } catch {
+    return { ...DEFAULT_VENDOR_COLORS };
+  }
+}
+
+function persistVendorColors(value: VendorColors) {
+  try {
+    localStorage.setItem(VENDOR_COLORS_KEY, JSON.stringify(value));
+  } catch {
+    /* ignore */
+  }
+}
+
 function canvasDotColor(bg: string): string {
   const hex = String(bg || "").replace("#", "");
   if (hex.length !== 6) return "#93c5fd";
@@ -741,6 +822,8 @@ export function TopologyPage() {
   const [edgeFlow, setEdgeFlow] = useState(false);
   const [edgeDefaults, setEdgeDefaults] = useState<EdgeDefaults>(() => loadEdgeDefaults());
   const [canvasBg, setCanvasBg] = useState(loadCanvasBg);
+  const [labelColors, setLabelColors] = useState<LabelColors>(() => loadLabelColors());
+  const [vendorColors, setVendorColors] = useState<VendorColors>(() => loadVendorColors());
   const [toolMode, setToolMode] = useState<ToolMode>("select");
   const [snapToGrid, setSnapToGrid] = useState(true);
   const [autoLayoutAfterDiscover, setAutoLayoutAfterDiscover] = useState(loadAutoLayoutAfterDiscover);
@@ -2900,16 +2983,122 @@ export function TopologyPage() {
                           const raw = e.target.value.trim();
                           if (!/^#[0-9a-fA-F]{0,6}$/.test(raw)) return;
                           setCanvasBg(raw);
-                          if (/^#[0-9a-fA-F]{6}$/.test(raw)) persistCanvasBg(raw.toLowerCase());
+                          if (isHexColor(raw)) persistCanvasBg(raw.toLowerCase());
                         }}
                         onBlur={() => {
-                          if (!/^#[0-9a-fA-F]{6}$/.test(canvasBg)) {
+                          if (!isHexColor(canvasBg)) {
                             setCanvasBg(loadCanvasBg());
                           }
                         }}
                       />
                     </div>
                   </div>
+                  <div className="topo-display-defaults topo-display-defaults--canvas-bg">
+                    <div className="topo-display-defaults__head">
+                      <strong>{t("topology.textColors")}</strong>
+                      <button
+                        type="button"
+                        className="btn btn--sm btn--ghost"
+                        onClick={() => {
+                          setLabelColors({ ...DEFAULT_LABEL_COLORS });
+                          persistLabelColors({ ...DEFAULT_LABEL_COLORS });
+                        }}
+                      >
+                        {t("topology.textColorsReset")}
+                      </button>
+                    </div>
+                    {(
+                      [
+                        ["name", t("topology.labelColor")],
+                        ["edgeLabel", t("topology.edgeLabelColor")],
+                      ] as const
+                    ).map(([key, label]) => (
+                      <div key={key} className="topo-display-defaults__row">
+                        <span className="topo-display-defaults__name">{label}</span>
+                        <input
+                          type="color"
+                          value={labelColors[key]}
+                          title={label}
+                          onChange={(e) => {
+                            const next = { ...labelColors, [key]: e.target.value.toLowerCase() };
+                            setLabelColors(next);
+                            persistLabelColors(next);
+                          }}
+                        />
+                        <input
+                          className="topo-toolbar__select topo-canvas-bg-hex"
+                          value={labelColors[key]}
+                          spellCheck={false}
+                          aria-label={label}
+                          onChange={(e) => {
+                            const raw = e.target.value.trim();
+                            if (!/^#[0-9a-fA-F]{0,6}$/.test(raw)) return;
+                            const next = { ...labelColors, [key]: raw };
+                            setLabelColors(next);
+                            if (isHexColor(raw)) persistLabelColors({ ...next, [key]: raw.toLowerCase() });
+                          }}
+                          onBlur={() => {
+                            if (!isHexColor(labelColors[key])) {
+                              setLabelColors(loadLabelColors());
+                            }
+                          }}
+                        />
+                      </div>
+                    ))}
+                  </div>
+                  <div className="topo-display-defaults topo-display-defaults--canvas-bg">
+                    <div className="topo-display-defaults__head">
+                      <strong>{t("topology.vendorColors")}</strong>
+                      <button
+                        type="button"
+                        className="btn btn--sm btn--ghost"
+                        onClick={() => {
+                          setVendorColors({ ...DEFAULT_VENDOR_COLORS });
+                          persistVendorColors({ ...DEFAULT_VENDOR_COLORS });
+                        }}
+                      >
+                        {t("topology.vendorColorsReset")}
+                      </button>
+                    </div>
+                    {VENDOR_TONE_KEYS.map((key) => {
+                      const label = t(`topology.vendorTone.${key}`);
+                      return (
+                        <div key={key} className="topo-display-defaults__row">
+                          <span className="topo-display-defaults__name">{label}</span>
+                          <input
+                            type="color"
+                            value={vendorColors[key]}
+                            title={label}
+                            onChange={(e) => {
+                              const next = { ...vendorColors, [key]: e.target.value.toLowerCase() };
+                              setVendorColors(next);
+                              persistVendorColors(next);
+                            }}
+                          />
+                          <input
+                            className="topo-toolbar__select topo-canvas-bg-hex"
+                            value={vendorColors[key]}
+                            spellCheck={false}
+                            aria-label={label}
+                            onChange={(e) => {
+                              const raw = e.target.value.trim();
+                              if (!/^#[0-9a-fA-F]{0,6}$/.test(raw)) return;
+                              const next = { ...vendorColors, [key]: raw };
+                              setVendorColors(next);
+                              if (isHexColor(raw)) {
+                                persistVendorColors({ ...next, [key]: raw.toLowerCase() });
+                              }
+                            }}
+                            onBlur={() => {
+                              if (!isHexColor(vendorColors[key])) {
+                                setVendorColors(loadVendorColors());
+                              }
+                            }}
+                          />
+                        </div>
+                      );
+                    })}
+                  </div>
                   <div className="topo-display-defaults">
                     <div className="topo-display-defaults__head">
                       <strong>{t("topology.edgeDefaults")}</strong>
@@ -3327,7 +3516,23 @@ export function TopologyPage() {
           <div
             className={`topo-canvas${fullscreen ? " is-fullscreen" : ""}${toolMode === "pan" ? " is-pan-mode" : ""}`}
             ref={canvasRef}
-            style={{ ["--topo-canvas-bg" as string]: canvasBg }}
+            style={
+              {
+                "--topo-canvas-bg": canvasBg,
+                "--topo-label-color": labelColors.name,
+                "--topo-edge-label-color": labelColors.edgeLabel,
+                "--topo-vendor-cisco": vendorColors.cisco,
+                "--topo-vendor-huawei": vendorColors.huawei,
+                "--topo-vendor-zte": vendorColors.zte,
+                "--topo-vendor-juniper": vendorColors.juniper,
+                "--topo-vendor-nokia": vendorColors.nokia,
+                "--topo-vendor-ericsson": vendorColors.ericsson,
+                "--topo-vendor-h3c": vendorColors.h3c,
+                "--topo-vendor-ruijie": vendorColors.ruijie,
+                "--topo-vendor-mikrotik": vendorColors.mikrotik,
+                "--topo-vendor-gray": vendorColors.gray,
+              } as CSSProperties
+            }
             onDragOver={onCanvasDragOver}
             onDrop={onCanvasDrop}
           >