diff --git a/src/font/sprite/draw/block.zig b/src/font/sprite/draw/block.zig
index 27c6ae516..f7faacea7 100644
--- a/src/font/sprite/draw/block.zig
+++ b/src/font/sprite/draw/block.zig
@@ -15,6 +15,8 @@ const common = @import("common.zig");
 const Shade = common.Shade;
 const Quads = common.Quads;
 const Alignment = common.Alignment;
+const xHalfs = common.xHalfs;
+const yHalfs = common.yHalfs;
 const rect = common.rect;
 
 const font = @import("../../main.zig");
@@ -174,11 +176,11 @@ fn quadrant(
     canvas: *font.sprite.Canvas,
     comptime quads: Quads,
 ) void {
-    const center_x = metrics.cell_width / 2 + metrics.cell_width % 2;
-    const center_y = metrics.cell_height / 2 + metrics.cell_height % 2;
+    const x_halfs = xHalfs(metrics);
+    const y_halfs = yHalfs(metrics);
 
-    if (quads.tl) rect(metrics, canvas, 0, 0, center_x, center_y);
-    if (quads.tr) rect(metrics, canvas, center_x, 0, metrics.cell_width, center_y);
-    if (quads.bl) rect(metrics, canvas, 0, center_y, center_x, metrics.cell_height);
-    if (quads.br) rect(metrics, canvas, center_x, center_y, metrics.cell_width, metrics.cell_height);
+    if (quads.tl) rect(metrics, canvas, 0, 0, x_halfs[0], y_halfs[0]);
+    if (quads.tr) rect(metrics, canvas, x_halfs[1], 0, metrics.cell_width, y_halfs[0]);
+    if (quads.bl) rect(metrics, canvas, 0, y_halfs[1], x_halfs[0], metrics.cell_height);
+    if (quads.br) rect(metrics, canvas, x_halfs[1], y_halfs[1], metrics.cell_width, metrics.cell_height);
 }
diff --git a/src/font/sprite/draw/common.zig b/src/font/sprite/draw/common.zig
index 2f608180e..d10128cdf 100644
--- a/src/font/sprite/draw/common.zig
+++ b/src/font/sprite/draw/common.zig
@@ -204,6 +204,14 @@ pub fn xHalfs(metrics: font.Metrics) [2]u32 {
     return .{ half_width, metrics.cell_width - half_width };
 }
 
+/// yHalfs[0] should be used as the bottom edge of a top-aligned half.
+/// yHalfs[1] should be used as the top edge of a bottom-aligned half.
+pub fn yHalfs(metrics: font.Metrics) [2]u32 {
+    const float_height: f64 = @floatFromInt(metrics.cell_height);
+    const half_height: u32 = @intFromFloat(@round(0.5 * float_height));
+    return .{ half_height, metrics.cell_height - half_height };
+}
+
 /// Use these values as such:
 /// yThirds[0] bottom edge of the first third.
 /// yThirds[1] top edge of the second third.