Please be so kind as to read my full post before responding. Thank you for your consideration.
As far as I know, practically everything in PowerApps uses Color for the Foreground Color (e.g. Text, Icon Shape) and Fill for the Background Color (e.g. actual Background, empty space up to the border of a control/icon/label...). Icons also use this same logic/scheme.
In my mind, to my own logic, the Chevron used in Combo box/Drop down controls is just and embedded icon and should use the same logic.
But, in PowerApps, these Chevrons use a different logic, and Fill is used for the Foreground color (icon shape), and Background for the Background Color
This inconsistency is confusing and annoying me.
Is there an actual logic behind Chevrons using a different scheme of property naming than, as far as I know, everything else?
I am guessing that I will have to submit an Idea for this.