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sddm-theme

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如何切換「佈景主題」

因為在「Ubuntu」這個環境,

不修改設定檔的前提下

預設套用的「sddm theme」是「/usr/share/sddm/themes/ubuntu-theme」這個路徑。

再搭配「update-alternatives」的機制,

可以透過下面兩種方式,來切換要套用的「佈景主題」。

方式一

執行

sudo update-alternatives --config sddm-ubuntu-theme

顯示

There are 5 choices for the alternative sddm-ubuntu-theme (providing /usr/share/sddm/themes/ubuntu-theme).

  Selection    Path                                           Priority   Status
------------------------------------------------------------
* 0            /usr/share/sddm/themes/sddm-theme-chili         53        auto mode
  1            /usr/share/sddm/themes/debian-maui              40        manual mode
  2            /usr/share/sddm/themes/sddm-theme-chili         53        manual mode
  3            /usr/share/sddm/themes/sddm-theme-sugar-candy   50        manual mode
  4            /usr/share/sddm/themes/sddm-theme-sugar-dark    51        manual mode
  5            /usr/share/sddm/themes/sddm-theme-sugar-light   52        manual mode

Press <enter> to keep the current choice[*], or type selection number:

然後輸入「3」,並且按下「enter」

接著會顯示如下

update-alternatives: using /usr/share/sddm/themes/sddm-theme-sugar-candy to provide /usr/share/sddm/themes/ubuntu-theme (sddm-ubuntu-theme) in manual mode

方式二

執行

update-alternatives --list sddm-ubuntu-theme

顯示

/usr/share/sddm/themes/debian-maui
/usr/share/sddm/themes/sddm-theme-chili
/usr/share/sddm/themes/sddm-theme-sugar-candy
/usr/share/sddm/themes/sddm-theme-sugar-dark
/usr/share/sddm/themes/sddm-theme-sugar-light

執行

sudo update-alternatives --set sddm-ubuntu-theme /usr/share/sddm/themes/sddm-theme-sugar-dark

顯示

update-alternatives: using /usr/share/sddm/themes/sddm-theme-sugar-dark to provide /usr/share/sddm/themes/ubuntu-theme (sddm-ubuntu-theme) in manual mode

如何觀看目前狀態

方式一

執行

update-alternatives --display sddm-ubuntu-theme

顯示

sddm-ubuntu-theme - manual mode
  link best version is /usr/share/sddm/themes/sddm-theme-chili
  link currently points to /usr/share/sddm/themes/sddm-theme-sugar-dark
  link sddm-ubuntu-theme is /usr/share/sddm/themes/ubuntu-theme
/usr/share/sddm/themes/debian-maui - priority 40
/usr/share/sddm/themes/sddm-theme-chili - priority 53
/usr/share/sddm/themes/sddm-theme-sugar-candy - priority 50
/usr/share/sddm/themes/sddm-theme-sugar-dark - priority 51
/usr/share/sddm/themes/sddm-theme-sugar-light - priority 52

方式二

執行

update-alternatives --query sddm-ubuntu-theme

顯示

Name: sddm-ubuntu-theme
Link: /usr/share/sddm/themes/ubuntu-theme
Status: manual
Best: /usr/share/sddm/themes/sddm-theme-chili
Value: /usr/share/sddm/themes/sddm-theme-sugar-dark

Alternative: /usr/share/sddm/themes/debian-maui
Priority: 40

Alternative: /usr/share/sddm/themes/sddm-theme-chili
Priority: 53

Alternative: /usr/share/sddm/themes/sddm-theme-sugar-candy
Priority: 50

Alternative: /usr/share/sddm/themes/sddm-theme-sugar-dark
Priority: 51

Alternative: /usr/share/sddm/themes/sddm-theme-sugar-light
Priority: 52

方式三

執行

sudo update-alternatives --config sddm-ubuntu-theme

顯示

There are 5 choices for the alternative sddm-ubuntu-theme (providing /usr/share/sddm/themes/ubuntu-theme).

  Selection    Path                                           Priority   Status
------------------------------------------------------------
  0            /usr/share/sddm/themes/sddm-theme-chili         53        auto mode
  1            /usr/share/sddm/themes/debian-maui              40        manual mode
  2            /usr/share/sddm/themes/sddm-theme-chili         53        manual mode
  3            /usr/share/sddm/themes/sddm-theme-sugar-candy   50        manual mode
* 4            /usr/share/sddm/themes/sddm-theme-sugar-dark    51        manual mode
  5            /usr/share/sddm/themes/sddm-theme-sugar-light   52        manual mode

Press <enter> to keep the current choice[*], or type selection number:

重新啟動 sddm

sudo systemctl restart sddm.service