diff --git a/src/main/base/browserwindow.ts b/src/main/base/browserwindow.ts
index 98125067..0cd560ee 100644
--- a/src/main/base/browserwindow.ts
+++ b/src/main/base/browserwindow.ts
@@ -431,7 +431,7 @@ export class BrowserWindow {
                             description: themeJson.description || themeDescription,
                             path: themePath,
                             file: theme,
-                            test: join(themePath, "theme.json")
+                            github_repo: themeJson.github_repo || ""
                         });
                     } else {
                         themeObjects.push({
@@ -439,7 +439,7 @@ export class BrowserWindow {
                             description: themeDescription,
                             path: themePath,
                             file: theme,
-                            test: join(themePath, "theme.json")
+                            github_repo: ""
                         });
                     }
                 }
diff --git a/src/renderer/views/pages/themes-github.ejs b/src/renderer/views/pages/themes-github.ejs
index 98d4ee11..78c21b74 100644
--- a/src/renderer/views/pages/themes-github.ejs
+++ b/src/renderer/views/pages/themes-github.ejs
@@ -39,7 +39,10 @@
                             </div>
                         </div>
                         <div class="col-auto nopadding flex-center">
-                            <button class="md-btn md-btn-primary" @click="installThemeRepo(openRepo)">Install</button>
+                            <button class="md-btn md-btn-primary" @click="installThemeRepo(openRepo)">
+                                <span v-if="!themesInstalled.includes(openRepo.full_name)">Install</span>
+                                <span v-else>Update</span>
+                            </button>
                         </div>
                     </div>
                 </div>
@@ -67,13 +70,25 @@
                         avatar_url: ''
                     },
                     readme: ""
-                }
+                },
+                themesInstalled: []
             }
         },
         mounted() {
             this.getRepos();
+            this.getInstalledThemes();
         },
         methods: {
+            getInstalledThemes() {
+                let self = this
+                const themes = ipcRenderer.sendSync("get-themes")
+                // for each theme, get the github_repo property and push it to the themesInstalled array, if not blank
+                themes.forEach(theme => {
+                    if (theme.github_repo !== "") {
+                        self.themesInstalled.push(theme.github_repo)
+                    }
+                })
+            },
             showRepo(repo) {
                 const self = this
                 const readmeUrl = `https://raw.githubusercontent.com/${repo.full_name}/main/README.md`;