Use nvgCreateSharedGL2() to create framebuffer NanoVG context, so it shares fonts and images with the main context.

dep/nanovg

@@ -1 +1 @@
-Subproject commit ade6e6c060504002a4409fb0943432cf5c494872
+Subproject commit ccaaf90c80bb639823ff4cdcbbb413ee97751ebe

src/Window.cpp

@@ -319,8 +319,7 @@ Window::Window() {
 	int nvgFlags = NVG_ANTIALIAS;
 #if defined NANOVG_GL2
 	vg = nvgCreateGL2(nvgFlags);
-	// TODO Instead of creating a whole other NanoVG context, create one that uses the same fonts and framebuffers as `fb`.
-	fbVg = nvgCreateGL2(nvgFlags);
+	fbVg = nvgCreateSharedGL2(vg, nvgFlags);
 #elif defined NANOVG_GL3
 	vg = nvgCreateGL3(nvgFlags);
 #elif defined NANOVG_GLES2
@@ -331,8 +330,6 @@ Window::Window() {
 		exit(1);
 	}
 
-	// fbVg = nvgClone(vg);
-
 	// Load default Blendish font
 	uiFont = loadFont(asset::system("res/fonts/DejaVuSans.ttf"));
 	bndSetFont(uiFont->handle);