ResizeRedirectFlag
Did you mean ResizeRedirectMask
?
Xlib docs for that say:
Similarly, a single client can select for ResizeRedirectMask on a parent window. Then, any attempt to resize the window by another client is suppressed, and the client receives a ResizeRequest event.
which definitely sounds like it could cause misbehavior.
Glad to hear you’ve made progress, and good luck on the rest of your project!
(translation)
Title: Let’s try drawing Kagamine Rin in the style of (blank)
Top row:
Middle row:
Bottom row:
Hash tag: Kagamine Rin 10 Year Anniversary