(very slightly) cleaned up buttons

buttons.zig

@@ -1,9 +1,9 @@
 const shapes = @import("shapes.zig");
 
 const Vec2   = @Vector(2, f32);
-const Color = [4] u8;
+const Color  = [4] u8;
 
-const DEBUG   = Color{255,   0, 255, 255};
+const DEBUG  = Color{255,   0, 255, 255};
 
 pub const Button = struct {
     hovering   : bool,
@@ -21,11 +21,14 @@ pub fn render_arrow_button(b : Button, arrow_is_pointing_left : bool) void {
     const dir : f32 = if (arrow_is_pointing_left) 1 else -1;
     const background_color = if (b.hovering) b.color1_hov else b.color1_def;
     const detail_color     = if (b.hovering) b.color2_hov else b.color2_def;
-    // Background first.    
+
+    // Draw the background.
     shapes.draw_centered_rect(b.pos, b.width, b.height, background_color);
-    // Draw arrow body.
+
+    // Draw the arrow body.
     shapes.draw_centered_rect(b.pos + Vec2{dir * 0.1 * b.width, 0}, 0.5 * b.width, 0.4 * b.height, detail_color);
-    // Draw arrowhead triangle.
+
+    // Draw the arrowhead.
     const p1 = Vec2{b.pos[0] - dir * 0.4 * b.width, b.pos[1]};
     const p2 = Vec2{b.pos[0] - dir * 0.1 * b.width, b.pos[1] - 0.4 * b.height};
     const p3 = Vec2{b.pos[0] - dir * 0.1 * b.width, b.pos[1] + 0.4 * b.height};
@@ -42,8 +45,10 @@ pub fn render_menu_button(b : Button) void {
     };
     const background_color = if (b.hovering) b.color1_hov else b.color1_def;
     const detail_color     = if (b.hovering) b.color2_hov else b.color2_def;
-    // Background first.    
+
+    // Draw the background.
     shapes.draw_centered_rect(b.pos, b.width, b.height, background_color);
+
     // Draw the three rectangles.
     for (rect_pos) |pos| {
         shapes.draw_centered_rect(pos, square_length, subrectangle_height, detail_color);