diff --git a/src/components/VencordSettings/ThemesTab.tsx b/src/components/VencordSettings/ThemesTab.tsx
index b6cf1168f..d81951f48 100644
--- a/src/components/VencordSettings/ThemesTab.tsx
+++ b/src/components/VencordSettings/ThemesTab.tsx
@@ -16,20 +16,21 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { useSettings } from "@api/Settings";
+import { Settings, useSettings } from "@api/Settings";
 import { classNameFactory } from "@api/Styles";
 import { Flex } from "@components/Flex";
 import { Link } from "@components/Link";
 import { Margins } from "@utils/margins";
-import { classes } from "@utils/misc";
+import { classes, identity } from "@utils/misc";
+import { ModalCloseButton, ModalContent, ModalHeader, ModalProps, ModalRoot, openModal } from "@utils/modal";
 import { showItemInFolder } from "@utils/native";
-import { useAwaiter } from "@utils/react";
+import { LazyComponent, useAwaiter } from "@utils/react";
 import type { ThemeHeader } from "@utils/themes";
 import { getThemeInfo, stripBOM, type UserThemeHeader } from "@utils/themes/bd";
 import { usercssParse } from "@utils/themes/usercss";
-import { findByCodeLazy, findByPropsLazy, findLazy } from "@webpack";
-import { Button, Card, FluxDispatcher, Forms, React, showToast, TabBar, TextArea, useEffect, useRef, useState } from "@webpack/common";
-import type { ComponentType, Ref, SyntheticEvent } from "react";
+import { find, findByCodeLazy, findByPropsLazy, findLazy } from "@webpack";
+import { Button, Card, ComponentTypes, FluxDispatcher, Forms, Popout, React, Select, showToast, Slider, Switch, TabBar, Text, TextArea, TextInput, useEffect, useRef, useState } from "@webpack/common";
+import type { ComponentType, ReactNode, Ref, SyntheticEvent } from "react";
 import type { UserstyleHeader } from "usercss-meta";
 
 import { AddonCard } from "./AddonCard";
@@ -42,6 +43,15 @@ type FileInput = ComponentType<{
     filters?: { name?: string; extensions: string[]; }[];
 }>;
 
+interface ColorPickerProps {
+    value: number | null;
+    showEyeDropper?: boolean;
+    onChange(value: number | null): void;
+    onClose?(): void;
+}
+
+const ColorPickerModal = LazyComponent<ColorPickerProps>(() => find(m => m?.type?.toString?.().includes(".showEyeDropper")));
+
 const InviteActions = findByPropsLazy("resolveInvite");
 const TrashIcon = findByCodeLazy("M5 6.99902V18.999C5 20.101 5.897 20.999");
 const CogWheel = findByCodeLazy("18.564C15.797 19.099 14.932 19.498 14 19.738V22H10V19.738C9.069");
@@ -50,6 +60,33 @@ const TextAreaProps = findLazy(m => typeof m.textarea === "string");
 
 const cl = classNameFactory("vc-settings-theme-");
 
+const colorNameHexMap = {
+    "aliceblue": "#f0f8ff", "antiquewhite": "#faebd7", "aqua": "#00ffff", "aquamarine": "#7fffd4", "azure": "#f0ffff",
+    "beige": "#f5f5dc", "bisque": "#ffe4c4", "black": "#000000", "blanchedalmond": "#ffebcd", "blue": "#0000ff", "blueviolet": "#8a2be2", "brown": "#a52a2a", "burlywood": "#deb887",
+    "cadetblue": "#5f9ea0", "chartreuse": "#7fff00", "chocolate": "#d2691e", "coral": "#ff7f50", "cornflowerblue": "#6495ed", "cornsilk": "#fff8dc", "crimson": "#dc143c", "cyan": "#00ffff",
+    "darkblue": "#00008b", "darkcyan": "#008b8b", "darkgoldenrod": "#b8860b", "darkgray": "#a9a9a9", "darkgreen": "#006400", "darkkhaki": "#bdb76b", "darkmagenta": "#8b008b", "darkolivegreen": "#556b2f",
+    "darkorange": "#ff8c00", "darkorchid": "#9932cc", "darkred": "#8b0000", "darksalmon": "#e9967a", "darkseagreen": "#8fbc8f", "darkslateblue": "#483d8b", "darkslategray": "#2f4f4f", "darkturquoise": "#00ced1",
+    "darkviolet": "#9400d3", "deeppink": "#ff1493", "deepskyblue": "#00bfff", "dimgray": "#696969", "dodgerblue": "#1e90ff",
+    "firebrick": "#b22222", "floralwhite": "#fffaf0", "forestgreen": "#228b22", "fuchsia": "#ff00ff",
+    "gainsboro": "#dcdcdc", "ghostwhite": "#f8f8ff", "gold": "#ffd700", "goldenrod": "#daa520", "gray": "#808080", "green": "#008000", "greenyellow": "#adff2f",
+    "honeydew": "#f0fff0", "hotpink": "#ff69b4",
+    "indianred ": "#cd5c5c", "indigo": "#4b0082", "ivory": "#fffff0", "khaki": "#f0e68c",
+    "lavender": "#e6e6fa", "lavenderblush": "#fff0f5", "lawngreen": "#7cfc00", "lemonchiffon": "#fffacd", "lightblue": "#add8e6", "lightcoral": "#f08080", "lightcyan": "#e0ffff", "lightgoldenrodyellow": "#fafad2",
+    "lightgrey": "#d3d3d3", "lightgreen": "#90ee90", "lightpink": "#ffb6c1", "lightsalmon": "#ffa07a", "lightseagreen": "#20b2aa", "lightskyblue": "#87cefa", "lightslategray": "#778899", "lightsteelblue": "#b0c4de",
+    "lightyellow": "#ffffe0", "lime": "#00ff00", "limegreen": "#32cd32", "linen": "#faf0e6",
+    "magenta": "#ff00ff", "maroon": "#800000", "mediumaquamarine": "#66cdaa", "mediumblue": "#0000cd", "mediumorchid": "#ba55d3", "mediumpurple": "#9370d8", "mediumseagreen": "#3cb371", "mediumslateblue": "#7b68ee",
+    "mediumspringgreen": "#00fa9a", "mediumturquoise": "#48d1cc", "mediumvioletred": "#c71585", "midnightblue": "#191970", "mintcream": "#f5fffa", "mistyrose": "#ffe4e1", "moccasin": "#ffe4b5",
+    "navajowhite": "#ffdead", "navy": "#000080",
+    "oldlace": "#fdf5e6", "olive": "#808000", "olivedrab": "#6b8e23", "orange": "#ffa500", "orangered": "#ff4500", "orchid": "#da70d6",
+    "palegoldenrod": "#eee8aa", "palegreen": "#98fb98", "paleturquoise": "#afeeee", "palevioletred": "#d87093", "papayawhip": "#ffefd5", "peachpuff": "#ffdab9", "peru": "#cd853f", "pink": "#ffc0cb", "plum": "#dda0dd", "powderblue": "#b0e0e6", "purple": "#800080",
+    "rebeccapurple": "#663399", "red": "#ff0000", "rosybrown": "#bc8f8f", "royalblue": "#4169e1",
+    "saddlebrown": "#8b4513", "salmon": "#fa8072", "sandybrown": "#f4a460", "seagreen": "#2e8b57", "seashell": "#fff5ee", "sienna": "#a0522d", "silver": "#c0c0c0", "skyblue": "#87ceeb", "slateblue": "#6a5acd", "slategray": "#708090", "snow": "#fffafa", "springgreen": "#00ff7f", "steelblue": "#4682b4",
+    "tan": "#d2b48c", "teal": "#008080", "thistle": "#d8bfd8", "tomato": "#ff6347", "turquoise": "#40e0d0",
+    "violet": "#ee82ee",
+    "wheat": "#f5deb3", "white": "#ffffff", "whitesmoke": "#f5f5f5",
+    "yellow": "#ffff00", "yellowgreen": "#9acd32"
+};
+
 function Validator({ link }: { link: string; }) {
     const [res, err, pending] = useAwaiter(() => fetch(link).then(res => {
         if (res.status > 300) throw `${res.status} ${res.statusText}`;
@@ -98,6 +135,195 @@ function Validators({ themeLinks }: { themeLinks: string[]; }) {
     );
 }
 
+function ColorPicker(props: ColorPickerProps) {
+    const [color, setColor] = useState(props.value);
+
+    return (
+        <Popout
+            renderPopout={() => (
+                <ColorPickerModal value={props.value} onChange={value => { setColor(value); props.onChange(value); }} showEyeDropper={props.showEyeDropper} />
+            )}
+        >
+            {popoutProps => (
+                <div {...popoutProps} style={{
+                    width: "2em",
+                    height: "2em",
+                    cursor: "pointer",
+                    backgroundColor: color ? `#${color.toString(16).padStart(6, "0")}` : "var(--background-secondary)",
+                    borderRadius: ".125em",
+                    border: "1px solid var(--background-tertiary)",
+                }}></div>
+            )}
+        </Popout>
+    );
+}
+
+interface UserCSSSettingsModalProps {
+    modalProps: ModalProps;
+    theme: UserstyleHeader;
+}
+
+function UserCSSSettingsModal({ modalProps, theme }: UserCSSSettingsModalProps) {
+    // @ts-expect-error UseSettings<> can't determine this is a valid key
+    const themeSettings = useSettings(["userCssVars"]).userCssVars[theme.id];
+
+    const controls: ReactNode[] = [];
+
+    function updateSetting(key: string, value: string, setValue: (value: string) => void) {
+        themeSettings[key] = value;
+        setValue(value);
+    }
+
+    for (const [name, varInfo] of Object.entries(theme.vars)) {
+        switch (varInfo.type) {
+            case "text": {
+                const [value, setValue] = useState(themeSettings[name]);
+
+                controls.push(
+                    <Forms.FormSection>
+                        <Forms.FormTitle tag="h5">{varInfo.label}</Forms.FormTitle>
+                        <TextInput
+                            key={name}
+                            value={value}
+                            onChange={v => updateSetting(name, v, setValue)}
+                        />
+                    </Forms.FormSection>
+                );
+                break;
+            }
+
+            case "checkbox": {
+                const [value, setValue] = useState(themeSettings[name]);
+
+                controls.push(
+                    <Forms.FormSection>
+                        <Switch
+                            key={name}
+                            value={value === "1"}
+                            onChange={value => updateSetting(name, value ? "1" : "0", setValue)}
+                            hideBorder
+                            style={{ marginBottom: "0.5em" }}
+                        >
+                            {varInfo.label}
+                        </Switch>
+                    </Forms.FormSection>
+                );
+                break;
+            }
+
+            case "color": {
+                const [value, setValue] = useState(themeSettings[name]);
+
+                let normalizedValue = value;
+
+                if (Object.hasOwn(colorNameHexMap, normalizedValue)) {
+                    normalizedValue = colorNameHexMap[normalizedValue];
+                }
+
+                controls.push(
+                    <Forms.FormSection>
+                        <Forms.FormTitle tag="h5">{varInfo.label}</Forms.FormTitle>
+                        <ColorPicker
+                            key={name}
+                            value={parseInt(normalizedValue.substring(1), 16)}
+                            onChange={v => updateSetting(name, "#" + (v?.toString(16).padStart(6, "0") ?? "000000"), setValue)}
+                        />
+                    </Forms.FormSection>
+                );
+                break;
+            }
+
+            case "number": {
+                const [value, setValue] = useState(themeSettings[name]);
+
+                controls.push(
+                    <Forms.FormSection>
+                        <Forms.FormTitle tag="h5">{varInfo.label}</Forms.FormTitle>
+                        <TextInput
+                            type="number"
+                            pattern="-?[0-9]+"
+                            key={name}
+                            value={value}
+                            onChange={v => updateSetting(name, v, setValue)}
+                        />
+                    </Forms.FormSection>
+                );
+                break;
+            }
+
+            case "select": {
+                const [value, setValue] = useState(themeSettings[name]);
+
+                const options = varInfo.options.map(option => ({
+                    disabled: false,
+
+                    key: option.name,
+                    value: option.value,
+                    default: varInfo.default === option.value,
+                    label: option.label
+                } as ComponentTypes.SelectOption));
+
+                controls.push(
+                    <Forms.FormSection>
+                        <Forms.FormTitle tag="h5">{varInfo.label}</Forms.FormTitle>
+                        <Select
+                            placeholder={varInfo.label}
+                            key={name}
+                            options={options}
+                            closeOnSelect={true}
+
+                            select={v => updateSetting(name, v, setValue)}
+                            isSelected={v => v === value}
+                            serialize={identity}
+                        />
+                    </Forms.FormSection>
+                );
+                break;
+            }
+
+            case "range": {
+                const [value, setValue] = useState(themeSettings[name]);
+
+                const markers: number[] = [];
+
+                // defaults taken from https://github.com/openstyles/stylus/wiki/Writing-UserCSS#default-value
+                for (let i = (varInfo.min ?? 0); i <= (varInfo.max ?? 10); i += (varInfo.step ?? 1)) {
+                    markers.push(i);
+                }
+
+                controls.push(
+                    <Forms.FormSection>
+                        <Forms.FormTitle tag="h5">{varInfo.label} ({varInfo.units})</Forms.FormTitle>
+                        <Slider
+                            initialValue={parseInt(value, 10)}
+                            defaultValue={varInfo.default}
+                            onValueChange={v => updateSetting(name, v.toString(), setValue)}
+                            minValue={varInfo.min}
+                            maxValue={varInfo.max}
+
+                            markers={markers}
+                            stickToMarkers={true}
+                        />
+                    </Forms.FormSection>
+                );
+                break;
+            }
+        }
+    }
+
+    return (
+        <ModalRoot {...modalProps}>
+            <ModalHeader separator={false}>
+                <Text variant="heading-lg/semibold" style={{ flexGrow: 1 }}>Settings for {theme.name}</Text>
+                <ModalCloseButton onClick={modalProps.onClose} />
+            </ModalHeader>
+            <ModalContent>
+                <Flex flexDirection="column" style={{ gap: 12, marginBottom: 16 }}>{controls}</Flex>
+            </ModalContent>
+        </ModalRoot>
+    );
+}
+
 interface BDThemeCardProps {
     theme: UserThemeHeader;
     enabled: boolean;
@@ -122,9 +348,14 @@ function UserCSSThemeCard({ theme, enabled, onChange, onDelete }: UserCSSCardPro
             setEnabled={onChange}
             infoButton={
                 <>
-                    <div style={{ cursor: "pointer" }}>
-                        <CogWheel />
-                    </div>
+                    {theme.vars && (
+                        <div style={{ cursor: "pointer" }} onClick={
+                            () => openModal(modalProps =>
+                                <UserCSSSettingsModal modalProps={modalProps} theme={theme} />)
+                        }>
+                            <CogWheel />
+                        </div>
+                    )}
                     {IS_WEB && (
                         <div style={{ cursor: "pointer", color: "var(--status-danger" }} onClick={onDelete}>
                             <TrashIcon />
@@ -215,10 +446,37 @@ function ThemesTab() {
 
             if (fileName.endsWith(".user.css")) {
                 // handle it as usercss
+                const header = await usercssParse(content, fileName);
+
                 themeInfo.push({
                     type: "usercss",
-                    header: usercssParse(content, fileName)
+                    header
                 });
+
+                Settings.userCssVars[header.id] ??= {};
+
+                for (const [name, varInfo] of Object.entries(header.vars ?? {})) {
+                    let normalizedValue = "";
+
+                    switch (varInfo.type) {
+                        case "text":
+                        case "color":
+                        case "select":
+                            normalizedValue = varInfo.default;
+                            break;
+                        case "checkbox":
+                            normalizedValue = varInfo.default ? "1" : "0";
+                            break;
+                        case "range":
+                            normalizedValue = `${varInfo.default}${varInfo.units}`;
+                            break;
+                        case "number":
+                            normalizedValue = String(varInfo.default);
+                            break;
+                    }
+
+                    Settings.userCssVars[header.id][name] ??= normalizedValue;
+                }
             } else {
                 // presumably BD but could also be plain css
                 themeInfo.push({
diff --git a/src/utils/quickCss.ts b/src/utils/quickCss.ts
index ad9642ac3..c70c880f4 100644
--- a/src/utils/quickCss.ts
+++ b/src/utils/quickCss.ts
@@ -99,6 +99,7 @@ document.addEventListener("DOMContentLoaded", () => {
 
     addSettingsListener("themeLinks", initThemes);
     addSettingsListener("enabledThemes", initThemes);
+    addSettingsListener("userCssVars", initThemes);
 
     if (!IS_WEB)
         VencordNative.quickCss.addThemeChangeListener(initThemes);
diff --git a/src/utils/themes/usercss/compiler.ts b/src/utils/themes/usercss/compiler.ts
index 6844a0c86..7785e42ae 100644
--- a/src/utils/themes/usercss/compiler.ts
+++ b/src/utils/themes/usercss/compiler.ts
@@ -62,7 +62,7 @@ export async function compileUsercss(fileName: string) {
     // - use the preprocessor defined
     // - if variables are set, `uso`
     // - otherwise, `default`
-    const { vars = {}, preprocessor = Object.keys(vars).length > 0 ? "uso" : "default" } = usercssParse(themeData, fileName);
+    const { vars = {}, preprocessor = Object.keys(vars).length > 0 ? "uso" : "default", id } = await usercssParse(themeData, fileName);
 
     const preprocessorFn = preprocessors[preprocessor];
 
@@ -74,7 +74,7 @@ export async function compileUsercss(fileName: string) {
     const varsToPass = {};
 
     for (const [k, v] of Object.entries(vars)) {
-        varsToPass[k] = Settings.userCssVars[fileName]?.[k] ?? v.default;
+        varsToPass[k] = Settings.userCssVars[id]?.[k] ?? v.default;
     }
 
     try {
diff --git a/src/utils/themes/usercss/index.ts b/src/utils/themes/usercss/index.ts
index 3c51e38f1..f83d293fe 100644
--- a/src/utils/themes/usercss/index.ts
+++ b/src/utils/themes/usercss/index.ts
@@ -9,7 +9,7 @@ import { parse as originalParse, UserstyleHeader } from "usercss-meta";
 
 const UserCSSLogger = new Logger("UserCSS", "#d2acf5");
 
-export function usercssParse(text: string, fileName: string): UserstyleHeader {
+export async function usercssParse(text: string, fileName: string): Promise<UserstyleHeader> {
     var { metadata, errors } = originalParse(text.replace(/\r/g, ""), { allowErrors: true });
 
     if (errors.length) {
@@ -19,5 +19,20 @@ export function usercssParse(text: string, fileName: string): UserstyleHeader {
     return {
         ...metadata,
         fileName,
+        id: await getUserCssId(metadata)
     };
 }
+
+export async function getUserCssId(header: UserstyleHeader): Promise<string> {
+    const encoder = new TextEncoder();
+
+    const nameBuf = encoder.encode(header.name);
+    const namespaceBuf = encoder.encode(header.namespace);
+
+    const nameHash = new Uint8Array(await window.crypto.subtle.digest("SHA-256", nameBuf));
+    const namespaceHash = new Uint8Array(await window.crypto.subtle.digest("SHA-256", namespaceBuf));
+
+    const idHash = await window.crypto.subtle.digest("SHA-256", new Uint8Array([...nameHash, ...namespaceHash]));
+
+    return window.btoa(String.fromCharCode(...new Uint8Array(idHash)));
+}
diff --git a/src/utils/themes/usercss/usercss-meta.d.ts b/src/utils/themes/usercss/usercss-meta.d.ts
index d51304591..1a39bf6d2 100644
--- a/src/utils/themes/usercss/usercss-meta.d.ts
+++ b/src/utils/themes/usercss/usercss-meta.d.ts
@@ -36,11 +36,18 @@ declare module "usercss-meta" {
         | {
             type: "select";
             default: string;
-            options: Record<string, string>;
+            options: { name: string; label: string; value: string; }[];
         }
     )>;
 
     export interface UserstyleHeader {
+        /**
+         * The unique ID of the UserCSS style.
+         *
+         * @vencord Specific to Vencord, not part of the original module.
+         */
+        id: string;
+
         /**
          * The file name of the UserCSS style.
          *
diff --git a/src/webpack/common/types/components.d.ts b/src/webpack/common/types/components.d.ts
index 4b316aad6..3101b2859 100644
--- a/src/webpack/common/types/components.d.ts
+++ b/src/webpack/common/types/components.d.ts
@@ -190,7 +190,7 @@ export type TextArea = ComponentType<PropsWithRef<Omit<HTMLProps<HTMLTextAreaEle
     onChange(v: string): void;
 }>>;
 
-interface SelectOption {
+export interface SelectOption {
     disabled?: boolean;
     value: any;
     label: string;