Power BI App (content packs) Icon sizing and future

Hi, I've done some research, and the problem is that Power BI resizes the uploaded image to 4 different icon sizes that are not exactly multiples, which is hell for scaling crisply:

• Left menu / Workspace list : 24px (uses actual file size), supports transparency
• Workspace header: 48px (uses actual file size), supports transparency
• App header: 40px (uses 1:3 scaled down version of 120px), does not support transparency
• App tile in homescreen: 89px (uses 2:3 scaled down version of 120px and loses 1 pixel), does not support transparency
  
  

PowerBI resizes the icons after you upload them and doesn't do a very great job at it. Anti-aliasing is all over the place. I've found that if I upload a 196x196 circular icon with an inner shape of 112 pixels, it renders the 'least bad' results. If you use line art - as I did in the example below - your line width should be 5 pixels. I use a ring around my icons to indicate whether a workspace is either Development, Testing or Production (we use deployment pipelines). 

Hope this helps. I also tried a total width of 180px as cnatx87 pointed out, but it gets washed out too much in the small icons. 

Edit: I know that 192px would mathematically be a better size (it is a multiple of 24 and 48, and also it is exactly 1.6 times 120). I found however that at small sizes, the contrast is too harsh. But this may be personal taste: