Issue 1:
Misc. Window Management bucket

Make sure caption controls "dim out" when window loses NC focus (WM_NCACTIVATE?)

#1840 When we're maximized, the system thinks we're a full-screen app. We need to jiggle the window by 1px or something.

Others:

#2001 Make sure MinMaxCloseControl supports FullScreen & Tablet Mode

#2100 When a dialog is open, the titlebar is the wrong color

Also: #4744 Investigate Acrylic in titlebar / not using a HRGN for the titlebar

#1230 I have to restart the new terminal to see the effects of changing between light and dark windows theme.

#2541 When the window is maximized, there should be no padding above the tabs

#3440 Windows Terminal does not open with button displaying "maximized" state

#4288 Maximize and minimize window buttons incorrect rendering

strange bar appear while maximized #8384

Fixed in `master`

Suspicious remains of previous window borders flash up when closing the window (#3222) (PR#3394)

White border at the bottom of the window. (#3064) (PR #3394)

Stop creating and throwing away so many HRGNs during move-size. (PR #3394)

#3136 we learned that CXDRAG and CYDRAG are not the right things to use; use the right things. (PR #3394)

#1307 Thick border around window, and drag handles should not be only over that border. (PR #3394)

#1897 There's a bunch of duplicated work, well, everywhere. (PR #3394)

make the window border have distinct edges (right now it blends in with white/black things); consider the user's accent color somehow?

Could this be solved just by not NCPAINTing, and letting DWM draw our window shadow again?

Possibly related:

#1859 The border width should match the value from the system theme

Fixed in <0.6

Switch from _ - X to real or real-looking caption controls

Definitely related, because we're handling WM_NCPAINT:

[huge bucket] look at getting the window shadow back (PR #1898)

make the window border less round on top (PR #1898)

Maybe related:

make the window border less painfully black/white

Misc. Window Management bucket

consider giving NonClientIslandWindow knowledge about its caption button box for a more direct connection (PR #1948)

#1780 Double clicking on the drag bar to maximize does not update the maximize button icon

Make sure maximize button maintains correct state when window is maximized in any manner

#1055 Window edges are cut off when the window is maximized on a secondary display (PR #1921)

#2028 Clicking on the TitleBar does not close the dropdown menu

#2268 Maximizing terminal when window is across two monitors causes bars to bleed across monitor.

Others:

#1913 Dark Theme requires settings reload (PR #2107)

Issue 2:
Your Windows build number: (Type ver at a Windows Command Prompt)

Microsoft Windows [Version 10.0.18362.113]

What you're doing and what's happening: (Copy & paste specific commands and their output, or include screen shots)

Compiled Windows Terminal application using VS2019 16.0.3 targeted on x86.

When starting Terminal, all I can see is white / blank screen.

Which just terminates approx. after 2-3 minutes.

No CPU activity.

Couple threads:

What's wrong / what should be happening instead:

Application should launch normally :)