fonts: change font to onest

src/images.rs

@@ -0,0 +1,45 @@
+use egui::{Color32, ColorImage};
+
+pub fn round_image(image: &mut ColorImage) {
+    // The radius to the edge of of the avatar circle
+    let edge_radius = image.size[0] as f32 / 2.0;
+    let edge_radius_squared = edge_radius * edge_radius;
+
+    for (pixnum, pixel) in image.pixels.iter_mut().enumerate() {
+        // y coordinate
+        let uy = pixnum / image.size[0];
+        let y = uy as f32;
+        let y_offset = edge_radius - y;
+
+        // x coordinate
+        let ux = pixnum % image.size[0];
+        let x = ux as f32;
+        let x_offset = edge_radius - x;
+
+        // The radius to this pixel (may be inside or outside the circle)
+        let pixel_radius_squared: f32 = x_offset * x_offset + y_offset * y_offset;
+
+        // If inside of the avatar circle
+        if pixel_radius_squared <= edge_radius_squared {
+            // squareroot to find how many pixels we are from the edge
+            let pixel_radius: f32 = pixel_radius_squared.sqrt();
+            let distance = edge_radius - pixel_radius;
+
+            // If we are within 1 pixel of the edge, we should fade, to
+            // antialias the edge of the circle. 1 pixel from the edge should
+            // be 100% of the original color, and right on the edge should be
+            // 0% of the original color.
+            if distance <= 1.0 {
+                *pixel = Color32::from_rgba_premultiplied(
+                    (pixel.r() as f32 * distance) as u8,
+                    (pixel.g() as f32 * distance) as u8,
+                    (pixel.b() as f32 * distance) as u8,
+                    (pixel.a() as f32 * distance) as u8,
+                );
+            }
+        } else {
+            // Outside of the avatar circle
+            *pixel = Color32::TRANSPARENT;
+        }
+    }
+}