1 files changed, 16 insertions, 3 deletions
diff --git a/svg.js.d.ts b/svg.js.d.ts
index 5fd0513..b3f17e9 100644
--- a/svg.js.d.ts
+++ b/svg.js.d.ts
@@ -4,14 +4,27 @@
 // trick to keep reference to Array build-in type
 declare class BuiltInArray<T> extends Array<T> {}
 
+// camelCase to kebab-case
+declare type CamelToKebab<S extends string> = S extends `${infer T}${infer U}`
+  ? U extends Uncapitalize<U>
+  ? `${Lowercase<T>}${CamelToKebab<U>}`
+  : `${Lowercase<T>}-${CamelToKebab<U>}`
+  : S;
+
+declare type ConvertKeysToKebab<T> = {
+  [K in keyof T as CamelToKebab<K & string>]: T[K];
+};
+
+declare type KebabCSSStyleDeclaration = ConvertKeysToKebab<CSSStyleDeclaration>
+
 // trick to have nice attribute list for CSS
 declare type CSSStyleName = Exclude<
-  keyof CSSStyleDeclaration,
-  'parentRule' | 'length'
+  keyof KebabCSSStyleDeclaration,
+  'parent-rule' | 'length'
 >
 
 // create our own style declaration that includes css vars
-interface CSSStyleDeclarationWithVars extends CSSStyleDeclaration {
+interface CSSStyleDeclarationWithVars extends KebabCSSStyleDeclaration {
   [key: `--${string}`]: string
 }