A list of what @gender-darling
uses to make flags and terms :]
For flags :
Pride-flags has flag templates
Revenant-coining has high-quality flag PSDs and symbols
Coolors for colors
Pinterest is also helpful with colors
For flag making :
Firealpaca (PC)
Ibispaint X (Mobile)
Canva (Web)
Pixlr X (Web) and How to bypass the daily limit
Gimp (PC)
Have any questions ? Send me an ask @gender-darling
(page is a wip)