Make `iced_core::Button` customizable

Now it supports:
  - Any kind of content
  - Custom border radius
  - Custom background

2 files changed, 3 insertions, 0 deletions

diff --git a/wgpu/src/shader/quad.vert b/wgpu/src/shader/quad.vert
index 87f6cc53..b7c5cf3e 100644
--- a/wgpu/src/shader/quad.vert
+++ b/wgpu/src/shader/quad.vert
@@ -4,6 +4,7 @@ layout(location = 0) in vec2 v_Pos;
 layout(location = 1) in vec2 i_Pos;
 layout(location = 2) in vec2 i_Scale;
 layout(location = 3) in vec4 i_Color;
+layout(location = 4) in uint i_BorderRadius;
 
 layout (set = 0, binding = 0) uniform Globals {
     mat4 u_Transform;
@@ -12,6 +13,7 @@ layout (set = 0, binding = 0) uniform Globals {
 layout(location = 0) out vec4 o_Color;
 layout(location = 1) out vec2 o_Pos;
 layout(location = 2) out vec2 o_Scale;
+layout(location = 3) out uint o_BorderRadius;
 
 void main() {
     mat4 i_Transform = mat4(
@@ -24,6 +26,7 @@ void main() {
     o_Color = i_Color;
     o_Pos = i_Pos;
     o_Scale = i_Scale;
+    o_BorderRadius = i_BorderRadius;
 
     gl_Position = u_Transform * i_Transform * vec4(v_Pos, 0.0, 1.0);
 }
diff --git a/wgpu/src/shader/quad.vert.spv b/wgpu/src/shader/quad.vert.spv
index 0d13df6c..f62a160c 100644
--- a/wgpu/src/shader/quad.vert.spv
+++ b/wgpu/src/shader/quad.vert.spv