The global Spectrum theme for Garnet. Allows configuration and features 2 neutral themes and one completely red theme. Kvantum theme is used in screenshots.

Recommended:

Garnet Kvantum Theme

Lightly Shaders Kwin Effect

Installs:

Garnet Color Scheme

Spectrum Classic Garnet Plasma Theme

Spectrum Classic Colors Plasma Theme

Spectrum Classic Colors Opaque Plasma Theme

Spectrum Classic Plasma Theme

Spectrum Dark Icons

Spectrum Window Decoration

Configuration:

The Spectrum themes change color according to the Color Scheme you have equipped.

From System Settings:

Go to "Colors" to change your Color Scheme. Included is a classic color scheme and a new version that has headers for windows.
Go to "Plasma Style" to change between Spectrum themes. Plain themes will change color with your Color Scheme, though you may need to reapply them.
Go to "Window Decorations" to change to Spectrum's Aurorae theme, which will take on the same color as your panel and menus.

To adjust transparency of the panel and menus:

Opacity can now be changed using the script included with theme. Navigate to the Plasma Style's directory and pass a value from 0 to 99 to the script.

For example:

$ cd .local/share/plasma/desktoptheme/spectrum-classic-garnet

$ ./changeOpacity 43

Then reapply your Plasma Style in System Settings to update it.

Under Workspace: Workspace Behavior > Desktop Effects
"Background contrast" to toggle between 2 levels of transparency.
"Blur" will let you choose the strength of the blur effect as well as noise.

There are a lot of other effects in Desktop Effects to try if you are new to KDE Plasma.

Troubleshooting:

Have you tried turning it off and on again? Sometimes plasma assets will not update and some may still be themed to something you previously had set. This can usually be fixed by restarting.

To restart just plasmashell, open KRunner with "Alt + F2" to execute the following:

plasmashell --replace

The global Spectrum theme for Iolite. Allows configuration and features 2 neutral themes and one completely blue theme. Kvantum theme is used in screenshots.

Recommended:

Iolite Kvantum Theme

Lightly Shaders Kwin Effect

Installs:

Iolite Color Scheme

Spectrum Classic Iolite Plasma Theme

Spectrum Classic Colors Plasma Theme

Spectrum Classic Colors Opaque Plasma Theme

Spectrum Classic Plasma Theme

Spectrum Dark Icons

Spectrum Window Decoration

Configuration:

The Spectrum themes change color according to the Color Scheme you have equipped.

From System Settings:

Go to "Colors" to change your Color Scheme. Included is a classic color scheme and a new version that has headers for windows.
Go to "Plasma Style" to change between Spectrum themes. Plain themes will change color with your Color Scheme, though you may need to reapply them.
Go to "Window Decorations" to change to Spectrum's Aurorae theme, which will take on the same color as your panel and menus.

To adjust transparency of the panel and menus:

Opacity can now be changed using the script included with theme. Navigate to the Plasma Style's directory and pass a value from 0 to 99 to the script.

For example:

$ cd .local/share/plasma/desktoptheme/spectrum-classic-iolite

$ ./changeOpacity 43

Then reapply your Plasma Style in System Settings to update it.

Under Workspace: Workspace Behavior > Desktop Effects
"Background contrast" to toggle between 2 levels of transparency.
"Blur" will let you choose the strength of the blur effect as well as noise.

There are a lot of other effects in Desktop Effects to try if you are new to KDE Plasma.

Troubleshooting:

Have you tried turning it off and on again? Sometimes plasma assets will not update and some may still be themed to something you previously had set. This can usually be fixed by restarting.

To restart just plasmashell, open KRunner with "Alt + F2" to execute the following:

plasmashell --replace

The global Spectrum theme for Charoite. Allows configuration and features 2 neutral themes and one completely purple theme. Kvantum theme is used in screenshots.

Recommended:

Charoite Kvantum Theme

Lightly Shaders Kwin Effect

Installs:

Charoite Color Schemes

Spectrum Min. Classic Charoite Plasma Theme

Spectrum Classic Colors Plasma Theme

Spectrum Classic Colors Opaque Plasma Theme

Spectrum Classic Plasma Theme

Spectrum Dark Icons

Spectrum Window Decoration

Configuration:

The Spectrum themes change color according to the Color Scheme you have equipped.

From System Settings:

Go to "Colors" to change your Color Scheme. Included is a classic color scheme and a new version that has headers for windows.
Go to "Plasma Style" to change between Spectrum themes. Plain themes will change color with your Color Scheme, though you may need to reapply them.
Go to "Window Decorations" to change to Spectrum's Aurorae theme, which will take on the same color as your panel and menus.

To adjust transparency of the panel and menus:

Opacity can now be changed using the script included with theme. Navigate to the Plasma Style's directory and pass a value from 0 to 99 to the script.

For example:

$ cd .local/share/plasma/desktoptheme/spectrum-classic-charoite

$ ./changeOpacity 43

Then reapply your Plasma Style in System Settings to update it.

Under Workspace: Workspace Behavior > Desktop Effects
"Background contrast" to toggle between 2 levels of transparency.
"Blur" will let you choose the strength of the blur effect as well as noise.

There are a lot of other effects in Desktop Effects to try if you are new to KDE Plasma.

Troubleshooting:

Have you tried turning it off and on again? Sometimes plasma assets will not update and some may still be themed to something you previously had set. This can usually be fixed by restarting.

To restart just plasmashell, open KRunner with "Alt + F2" to execute the following:

plasmashell --replace

The global Spectrum theme for Maw Sit Sit. Allows configuration and features 2 neutral themes and one completely green theme. Kvantum theme is used in screenshots.

Recommended:

Maw Sit Sit Kvantum Themes

Lightly Shaders Kwin Effect

Installs:

Maw Sit Sit Color Scheme

Spectrum Classic Maw Sit Sit Plasma Theme

Spectrum Classic Colors Plasma Theme

Spectrum Classic Colors Opaque Plasma Theme

Spectrum Classic Plasma Theme

Spectrum Dark Icons

Spectrum Window Decoration

Configuration:

The Spectrum themes change color according to the Color Scheme you have equipped.

From System Settings:

Go to "Colors" to change your Color Scheme. Included is a classic color scheme and a new version that has headers for windows.
Go to "Plasma Style" to change between Spectrum themes. Plain themes will change color with your Color Scheme, though you may need to reapply them.
Go to "Window Decorations" to change to Spectrum's Aurorae theme, which will take on the same color as your panel and menus.

To adjust transparency of the panel and menus:

Opacity can now be changed using the script included with theme. Navigate to the Plasma Style's directory and pass a value from 0 to 99 to the script.

For example:

$ cd .local/share/plasma/desktoptheme/spectrum-classic-mawsitsit

$ ./changeOpacity 43

Then reapply your Plasma Style in System Settings to update it.

Under Workspace: Workspace Behavior > Desktop Effects
"Background contrast" to toggle between 2 levels of transparency.
"Blur" will let you choose the strength of the blur effect as well as noise.

There are a lot of other effects in Desktop Effects to try if you are new to KDE Plasma.

Troubleshooting:

Have you tried turning it off and on again? Sometimes plasma assets will not update and some may still be themed to something you previously had set. This can usually be fixed by restarting.

To restart just plasmashell, open KRunner with "Alt + F2" to execute the following:

plasmashell --replace

The global Spectrum theme for Strawberry Quartz. Allows configuration and features 2 neutral themes and one completely pink theme. The length of these names is getting out of hand. Kvantum theme is used in screenshots.

Recommended:

Strawberry Quartz Kvantum Theme

Lightly Shaders Kwin Effect

Installs:

Strawberry Quartz Color Scheme

Spectrum Classic Strawberry Quartz Plasma Theme

Spectrum Classic Colors Plasma Theme

Spectrum Classic Colors Opaque Plasma Theme

Spectrum Classic Plasma Theme

Spectrum Dark Icons

Spectrum Window Decoration

Configuration:

The Spectrum themes change color according to the Color Scheme you have equipped.

From System Settings:

Go to "Colors" to change your Color Scheme. Included is a classic color scheme and a new version that has headers for windows.
Go to "Plasma Style" to change between Spectrum themes. Plain themes will change color with your Color Scheme, though you may need to reapply them.
Go to "Window Decorations" to change to Spectrum's Aurorae theme, which will take on the same color as your panel and menus.

To adjust transparency of the panel and menus:

Opacity can now be changed using the script included with theme. Navigate to the Plasma Style's directory and pass a value from 0 to 99 to the script.

For example:

$ cd .local/share/plasma/desktoptheme/spectrum-classic-strawberryquartz

$ ./changeOpacity 43

Then reapply your Plasma Style in System Settings to update it.

Under Workspace: Workspace Behavior > Desktop Effects
"Background contrast" to toggle between 2 levels of transparency.
"Blur" will let you choose the strength of the blur effect as well as noise.

There are a lot of other effects in Desktop Effects to try if you are new to KDE Plasma.

Troubleshooting:

Have you tried turning it off and on again? Sometimes plasma assets will not update and some may still be themed to something you previously had set. This can usually be fixed by restarting.

To restart just plasmashell, open KRunner with "Alt + F2" to execute the following:

plasmashell --replace