Make a dark mode tweet image

X has two dark themes, not one. Dim is the navy blue palette built on #15202b, and Lights Out is true black on #000000. Most tweet screenshot tools only offer a single generic dark grey, which is why their output never quite matches a real screenshot.

Paste a link above to see the preview here.

Both are here with the exact background, text and border colours X uses, so a rendered card is indistinguishable from one captured on a dark-mode device. True black is the better pick for OLED screens and for anything that will sit on a dark background.

Questions

What is the difference between Dim and Lights Out?
Dim is a navy palette on #15202b with softer contrast. Lights Out is pure black on #000000, which looks best on OLED displays.
What are the exact X dark mode colours?
Dim uses #15202b background with #f7f9f9 text. Lights Out uses #000000 with #e7e9ea text and #2f3336 borders.
Can I get a dark card even if my own X theme is light?
Yes. The theme here is a render setting, independent of how X is configured on your device.