// OnPopulateMesh modified
if (this.FontToUse == null || this.m_DisableFontTextureChangedCallback) {
    return;
}
this.m_DisableFontTextureChangedCallback = true;
Rect rect = base.rectTransform.rect;
base.cachedTextGenerator.Populate(this.PostprocessText(), this.GetGenerationSettings(rect.size));
base.cachedTextGenerator.GetVertices(this.m_UIVertices);

// this part actually lives in another method but has been inlined for the paste
// these variables don't appear to be used further down the method body
// but if they are and i overlooked it, it could be a source of error
UIVertex vertex = this.m_UIVertices[0];
Vector2 refPoint = new Vector2(vertex.position.x, vertex.position.y) * this.pixelsPerUnit;
Vector2 pixelAdjustPoint = this.PixelAdjustPoint(refPoint);
pixelAdjustPoint.x = Mathf.FloorToInt(pixelAdjustPoint.x);
pixelAdjustPoint.y = Mathf.FloorToInt(pixelAdjustPoint.y);
Vector2 roundingOffset = pixelAdjustPoint - refPoint;
float scale = 1f / this.pixelsPerUnit;
for(int i = 0; i < this.m_UIVertices.Count; i++) {
    vertex = this.m_UIVertices[i];
    vertex.position *= scale;
    vertex.position.x = vertex.position.x + roundingOffset.x;
    vertex.position.y = vertex.position.y + roundingOffset.y;
    this.m_UIVertices[i] = vertex;
}
// end inline

if (this.m_UIVertices.Count > 0) {
    this.m_UIVertices.RemoveRange(this.m_UIVertices.Count - 4, 4);
}