gradients done, found some transform issues, added a testing rml file

readme.md

@@ -8,12 +8,23 @@ I originally began creating this for a Game Jam project where I got the basic re
 *Rendering features (from the RmlUi render interfface documentation https://mikke89.github.io/RmlUiDoc/pages/cpp_manual/interfaces/render.html#feature-table):*
 - [x] Basic rendering 
 - [x] Clip Mask
-- [x] Transforms
+- [-] Transforms
+  - transform-only overflow (no explicit `clip: always`) may not be clipping correctly
+  - 3D transforms (e.g. `perspective()` + `rotateY()`) do not render
 - [ ] Layers
 - [ ] Render textures
 - [ ] Mask images
 - [ ] Filters
 - [ ] Shaders
+  - [ ] Generic
+  - [x] Gradients
+    - [x] Linear
+    - [x] Radial
+    - [x] Conic
 
 *Backend features:*
 - [x] Input handling
+
+
+*Issue tracker:*
+