Upon re-reading the OP, i see NO mention of them using Manjaro, so why have others here magically presumed Manjaro? 😲 🤷♀
I don't have access to Manjaro Cinnamon [even if it transpires the OP does use MJ & i am blind], but i do have these Cinnamon DE VMs:
SparkyLinux 7 (Orion-Belt) [Debian-Testing]
Fedora Cinnamon
Mint Cinnamon
guigirl@Sparky-VM
. `-:-` -------------------
.o` .-///-` OS: SparkyLinux 7 (Orion-Belt) x
`oo` .:/++:. Host: KVM/QEMU (Standard PC (Q35
os+` -/+++:` ``.........``` Kernel: 5.18.3-sparky-amd64
/ys+`./+++/-.-::::::----......`` Uptime: 48 mins
`syyo`++o+--::::-::/+++/-`` Packages: 2805 (dpkg)
-yyy+.+o+`:/:-:sdmmmmmmmmdy+-` Shell: bash 5.1.16
::-` :yyy/-oo.-+/`ymho++++++oyhdmdy/` Resolution: 1920x1080
`/yy+-`.syyo`+o..o--h..osyhhddhs+//osyy/` DE: Cinnamon
-ydhs+-oyy/.+o.-: ` ` :/::+ydhy+```-os- WM: Mutter (Muffin)
.sdddy::syo--/:. `.:dy+-ohhho ./: WM Theme: Green-Submarine (Menta
:yddds/:+oo+//:-`- /+ +hy+.shhy: `` Theme: BlackMATE [GTK2/3]
`:ydmmdysooooooo-.ss`/yss--oyyo Icons: menta [GTK2/3]
`./ossyyyyo+:-/oo:.osso- .oys Terminal: gnome-terminal
``..-------::////.-oooo/ :so CPU: Intel (Haswell, no TSX, IBR
`...----::::::::--.`/oooo: .o: GPU: 00:01.0 Red Hat, Inc. Virti
``````` ++o+:` `:` Memory: 1157MiB / 3941MiB
.',;::::;,'. guigirl@fedora
.';:cccccccccccc:;,. --------------
.;cccccccccccccccccccccc;. OS: Fedora Linux 36 (Cinnamon) x86_64
.:cccccccccccccccccccccccccc:. Host: KVM/QEMU (Standard PC (Q35 + ICH
.;ccccccccccccc;.:dddl:.;ccccccc;. Kernel: 5.18.6-200.fc36.x86_64
.:ccccccccccccc;OWMKOOXMWd;ccccccc:. Uptime: 1 min
.:ccccccccccccc;KMMc;cc;xMMc:ccccccc:. Packages: 1794 (rpm)
,cccccccccccccc;MMM.;cc;;WW::cccccccc, Shell: bash 5.1.16
:cccccccccccccc;MMM.;cccccccccccccccc: Resolution: 1852x1023
:ccccccc;oxOOOo;MMM0OOk.;cccccccccccc: DE: Cinnamon 5.2.7
cccccc:0MMKxdd:;MMMkddc.;cccccccccccc; WM: Mutter (Muffin)
ccccc:XM0';cccc;MMM.;cccccccccccccccc' WM Theme: Mint-Y-Dark-Purple (Mint-Y)
ccccc;MMo;ccccc;MMW.;ccccccccccccccc; Theme: Mint-Y-Dark-Purple [GTK2/3]
ccccc;0MNc.ccc.xMMd:ccccccccccccccc; Icons: Mint-Y-Dark-Purple [GTK2/3]
cccccc;dNMWXXXWM0::cccccccccccccc:, Terminal: gnome-terminal
cccccccc;.:odl:.;cccccccccccccc:,. CPU: Intel i7-4790 (2) @ 3.599GHz
:cccccccccccccccccccccccccccc:'. GPU: 00:01.0 Red Hat, Inc. Virtio GPU
.:cccccccccccccccccccccc:;,.. Memory: 1231MiB / 3807MiB
'::cccccccccccccc::;,.
...-:::::-... guigirl@MintCinnamon20VM
.-MMMMMMMMMMMMMMM-. ------------------------
.-MMMM`..-:::::::-..`MMMM-. OS: Linux Mint 20.3 x86_64
.:MMMM.:MMMMMMMMMMMMMMM:.MMMM:. Host: KVM/QEMU (Standard PC (Q35 + I
-MMM-M---MMMMMMMMMMMMMMMMMMM.MMM- Kernel: 5.15.0-33-generic
`:MMM:MM` :MMMM:....::-...-MMMM:MMM:` Uptime: 24 mins
:MMM:MMM` :MM:` `` `` `:MMM:MMM: Packages: 2618 (dpkg)
.MMM.MMMM` :MM. -MM. .MM- `MMMM.MMM. Shell: bash 5.0.17
:MMM:MMMM` :MM. -MM- .MM: `MMMM-MMM: Resolution: 1920x1080
:MMM:MMMM` :MM. -MM- .MM: `MMMM:MMM: DE: Cinnamon
:MMM:MMMM` :MM. -MM- .MM: `MMMM-MMM: WM: Mutter (Muffin)
.MMM.MMMM` :MM:--:MM:--:MM: `MMMM.MMM. WM Theme: Mint-Y-Dark-Purple (CBlack
:MMM:MMM- `-MMMMMMMMMMMM-` -MMM-MMM: Theme: Mint-Y-Dark-Purple [GTK2/3]
:MMM:MMM:` `:MMM:MMM: Icons: Mint-Y-Dark-Purple [GTK2/3]
.MMM.MMMM:--------------:MMMM.MMM. Terminal: gnome-terminal
'-MMMM.-MMMMMMMMMMMMMMM-.MMMM-' CPU: Intel (Haswell, no TSX, IBRS) (
'.-MMMM``--:::::--``MMMM-.' GPU: 00:01.0 Red Hat, Inc. Virtio GP
'-MMMMMMMMMMMMM-' Memory: 887MiB / 3925MiB
``-:::::-``
I fully updated each of them;, then tested for the OP's assertion. Results:
Vivaldi-Stable File-Open & Save-As dialog boxes fully respect my desktop theming, in all three VMs. ☑ ☑ ☑
OP: Have you retested with a
new clean V profile?
new Cinnamon user account?
EDITED:
Ta @npro for correctly pointing out my silliness [guilty as charged!] -- i had all the Signatures hidden, doh! 🤦♀