Improvements for Noto Sans Syloti Nagri

[Sagir8453]

Defect Report

Many characters in the Noto sans Syloti Nagri font are wrong or not in order.

Font

NotoSansSylotiNagri-Regular.ttf.

Where the font came from, and when

Site: https://noto-website-2.storage.googleapis.com/pkgs/NotoSansSylotiNagti-hinted.zip
Date: 2019-03-25

Font Version

The current one available on GitHub.

Issue

As shown in the image below, some characters need improvements. An alternative glyph for the character "A" is needed, the alternative form is more common and less confusing with the character "RO". The shape of the character "I" should be improved, the top part.
Now the consonants.
"TTHO" should be like "6" as in the image. The "DDHO" should also look different. The "DO" 's bottom part should be longer. The "DHO" should have an alternative form. The "NO"'s front part should be connected little bit billow from the top of the vertical line. The "BHO" should be improved, it looks too similar to the "NO" in the current font. The "LO" should have an alternative form. The "SHO" also needs improvements.
Now the diacritics.
The "E", "DVISVARA" and the top part of the vowel sign "OO" should be separated from the horizontal line. And the "U" diacitic should be separate from the letters and it should be longer also.
The "DU" (DO + U diacitic) should be like in the image.
Will talk about the conjunct consonants issue later when they are supported.

Screenshot

Syloti Nagri alphabet from manuscripts. The letter "ddo" is missing here.

A font that I'm making. It's currently in alpha state. Will try to post an improved version later.

Base of my font.

Another manuscript page.

The "DU"