I love using the app and have a suggestion for people with Aging Eyes.
Right now I am using dark mode
In the detail view:
Under the task title - you have - notes - date and - alert fields
I would consider all this primary data.
The Title field is bright white however these fields are slightly gray Font color and this, although nice-looking - is hard to read.
I understand that you are trying to have a visual priority with the various colors, however since this is primary data I suggest it should all be equally bright white (for those of us whose eyesight is not perfect)
Please modify these fields (notes - date and - alert) to be bright white also.
- GENERAL Font Size Comment
Again, I'm sure you are using font size also as visual priority, However this makes the app hard to use for Aging Eyes. So please make your secondary font size larger for primary data - so it is easier to see.
Example: in list view - under task title - you have smaller fonts with primary data - that is hard to read (for me al least) showing Date - time and icons etc. My suggestion is to make that big font & big Icons also - and to keep it Visually Separate - simple right justify the second Line to keep it different from the main task title.